     VLKM00AUT Site Information Form (site log v2.0)
     International GNSS Service
     See Instructions at:
       https://files.igs.org/pub/station/general/sitelog_instr_v2.0.txt


0.   Form

     Prepared by (full name)  : apos.admin@bev.gv.at
     Date Prepared            : 2026-02-12
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : vlkm00aut_20250911.log
      Modified/Added Sections : 3.18, 3.19


1.   Site Identification of the GNSS Monument

     Site Name                : Voelkermarkt
     Nine Character ID        : VLKM00AUT
     Monument Inscription     : T0430-204L1 national TP number
     IERS DOMES Number        : 11040S001
     CDP Number               : none
     Monument Description     : Tubular steel mast fixed in the brickwall
       Height of the Monument : (m)
       Monument Foundation    : (STEEL RODS, CONCRETE BLOCK, ROOF, etc)
       Foundation Depth       : (m)
     Marker Description       : Tubular steel mast
     Date Installed           : 2001-04-02T00:00Z
     Geologic Characteristic  : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc)
       Bedrock Type           : (IGNEOUS/METAMORPHIC/SEDIMENTARY)
       Bedrock Condition      : (FRESH/JOINTED/WEATHERED)
       Fracture Spacing       : (0 cm/1-10 cm/11-50 cm/51-200 cm/over 200 cm)
       Fault zones nearby     : (YES/NO/Name of the zone)
         Distance/activity    : (multiple lines)
     Additional Information   : (multiple lines)


2.   Site Location Information

     City or Town             : Völkermarkt
     State or Province        : Carinthia
     Country or Region        : AUT
     Tectonic Plate           : EURASIAN
     Approximate Position (ITRF)
       X coordinate (m)       : 4243387.368
       Y coordinate (m)       : 1107380.940
       Z coordinate (m)       : 4616396.336
       Latitude (N is +)      : +463941.07
       Longitude (E is +)     : +0143733.82
       Elevation (m,ellips.)  : 527.3
     Additional Information   : Amon_08


3.   GNSS Receiver Information

3.1  Receiver Type            : LEICA SR9500
     Satellite System         : GPS
     Serial Number            : 20308
     Firmware Version         : 5.4
     Elevation Cutoff Setting : 6 deg
     Date Installed           : 2001-04-02T00:00Z
     Date Removed             : 2002-11-21T00:00Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.2  Receiver Type            : LEICA SR9500
     Satellite System         : GPS
     Serial Number            : 20721
     Firmware Version         : 5.04
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2002-11-21T11:15Z
     Date Removed             : 2008-11-11T09:00Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.3  Receiver Type            : LEICA SR520
     Satellite System         : GPS
     Serial Number            : 20115
     Firmware Version         : 5.06
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2008-11-11T09:15Z
     Date Removed             : 2009-09-17T08:30Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.4  Receiver Type            : LEICA SR530
     Satellite System         : GPS
     Serial Number            : 131365
     Firmware Version         : Nav 5.10 / Boot 62.1
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2010-05-18T13:00Z
     Date Removed             : 2010-05-21T00:00Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.5  Receiver Type            : LEICA SR520
     Satellite System         : GPS
     Serial Number            : 22113
     Firmware Version         : Nav 5.10 / Boot 62.1
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2010-05-21T00:00Z
     Date Removed             : 2015-04-29T09:00Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.6  Receiver Type            : TPS E_GGD
     Satellite System         : GPS+GLO
     Serial Number            : AFU74OAVDHC
     Firmware Version         : 3.4.2 Dec,12,2009
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-04-29T09:30Z
     Date Removed             : 2017-01-11T09:32Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.7  Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 4501499
     Firmware Version         : 5.1.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-01-11T10:07Z
     Date Removed             : 2017-03-17T09:10Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.8  Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 4501499
     Firmware Version         : 5.1.1
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-03-17T09:10Z
     Date Removed             : 2017-06-14T09:05Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.9  Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 4501499
     Firmware Version         : 5.1.2
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-06-14T09:10Z
     Date Removed             : 2019-02-07T07:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.10 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 4501499
     Firmware Version         : 5.2.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-02-07T07:05Z
     Date Removed             : 2019-09-30T06:01Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.11 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 4501499
     Firmware Version         : 5.3.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-09-30T06:05Z
     Date Removed             : 2019-12-16T07:03Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.12 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 4501499
     Firmware Version         : 5.3.1
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-12-16T07:05Z
     Date Removed             : 2020-02-04T10:09Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.13 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 4501499
     Firmware Version         : 5.3.2
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-02-04T10:12Z
     Date Removed             : 2020-02-24T07:03Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.14 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 4501499
     Firmware Version         : 5.2.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-02-24T07:06Z
     Date Removed             : 2021-11-03T07:00Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.15 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 4501499
     Firmware Version         : 5.4.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2021-11-03T07:04Z
     Date Removed             : 2022-09-20T06:03Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.16 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 4501499
     Firmware Version         : 5.5.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2022-09-20T06:05Z
     Date Removed             : 2025-04-17T00:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.17 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 3013984
     Firmware Version         : 5.5.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2025-04-17T00:00Z
     Date Removed             : 2025-09-11T06:40Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : Same Receiver as 4501499

3.18 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 3013984
     Firmware Version         : 5.6.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2025-09-11T06:42Z
     Date Removed             : 2026-02-12T07:26Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : Same Receiver as 4501499

3.19 Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 3013984
     Firmware Version         : 5.7.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2026-02-12T07:29Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : Same Receiver as 4501499

3.x  Receiver Type            : (A20, from rcvr_ant.tab; see instructions)
     Satellite System         : (GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS)
     Serial Number            : (A20, but note the first A5 is used in SINEX)
     Firmware Version         : (A11)
     Elevation Cutoff Setting : (deg)
     Date Installed           : (CCYY-MM-DDThh:mmZ)
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)


4.   GNSS Antenna Information

4.1  Antenna Type             : LEIAT504        BEVA
     Serial Number            : 0350
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0320
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : BEVA
     Radome Serial Number     : 4
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2001-04-02T00:00Z
     Date Removed             : 2008-11-11T09:00Z
     Additional Information   : (multiple lines)

4.2  Antenna Type             : LEIAT504        BEVA
     Serial Number            : 00814
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0320
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : BEVA
     Radome Serial Number     : 4
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2008-11-11T09:15Z
     Date Removed             : 2010-05-19T07:00Z
     Additional Information   : (multiple lines)

4.3  Antenna Type             : LEIAT504        BEVA
     Serial Number            : 0350
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0320
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : BEVA
     Radome Serial Number     : 6
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2010-05-19T07:00Z
     Date Removed             : 2010-10-20T05:45Z
     Additional Information   : (multiple lines)

4.4  Antenna Type             : LEIAT504        NONE
     Serial Number            : 0350
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0320
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : NONE
     Radome Serial Number     : 
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2010-10-20T05:45Z
     Date Removed             : 2011-05-26T07:00Z
     Additional Information   : (multiple lines)

4.5  Antenna Type             : LEIAT504        BEVA
     Serial Number            : 0350
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0320
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : BEVA
     Radome Serial Number     : 6
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2011-05-26T07:00Z
     Date Removed             : 2015-04-29T09:00Z
     Additional Information   : (multiple lines)

4.6  Antenna Type             : TPSCR3_GGD      CONE
     Serial Number            : 217_0183
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.1320
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : CONE
     Radome Serial Number     : 217_0183
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2015-04-29T09:30Z
     Date Removed             : 2017-01-11T09:32Z
     Additional Information   : (multiple lines)

4.7  Antenna Type             : LEIAR25.R4      LEIT
     Serial Number            : 726445
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0820
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : LEIT
     Radome Serial Number     : 2016/05
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : 2017-01-11T10:07Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Additional Information   : (multiple lines)

4.x  Antenna Type             : (A20, from rcvr_ant.tab; see instructions)
     Serial Number            : (A*, but note the first A5 is used in SINEX)
     Antenna Reference Point  : (BPA/BCR/XXX from "antenna.gra"; see instr.)
     Marker->ARP Up Ecc. (m)  : (F8.4)
     Marker->ARP North Ecc(m) : (F8.4)
     Marker->ARP East Ecc(m)  : (F8.4)
     Alignment from True N    : (deg; + is clockwise/east)
     Antenna Radome Type      : (A4 from rcvr_ant.tab; see instructions)
     Radome Serial Number     : 
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : (CCYY-MM-DDThh:mmZ)
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)


5.   Surveyed Local Ties

5.1  Tied Marker Name         : T0430-204A1
     Tied Marker Usage        : LOCAL CONTROL
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : (A9)
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : -6.554 m
       dy (m)                 : -3.105 m
       dz (m)                 : 22.441 m
     Accuracy (mm)            : 2 mm
     Survey method            : Triangulation + Distance
     Date Measured            : 2001-03-28
     Additional Information   : Op. K/2001 Aufl. 2

5.2  Tied Marker Name         : 430-204A1
     Tied Marker Usage        : LOCAL CONTROL
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : (A9)
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : -6.569 m
       dy (m)                 : -3.095 m
       dz (m)                 : 22.445 m
     Accuracy (mm)            : 2 mm
     Survey method            : Triangulation + Distance
     Date Measured            : (CCYY-MM-DDThh:mmZ)
     Additional Information   : Op. K/2006 Aufl. 3

5.x  Tied Marker Name         : 
     Tied Marker Usage        : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc)
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : (A9)
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : (m)
       dy (m)                 : (m)
       dz (m)                 : (m)
     Accuracy (mm)            : (mm)
     Survey method            : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc)
     Date Measured            : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)


6.   Frequency Standard

6.1  Standard Type            : INTERNAL
       Input Frequency        : (if external)
       Effective Dates        : 2003-01-02/CCYY-MM-DD
       Notes                  : none

6.x  Standard Type            : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc)
       Input Frequency        : (if external)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)


7.   Collocation Information

7.x  Instrumentation Type     : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc)
       Status                 : (PERMANENT/MOBILE)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)


8.   Meteorological Instrumentation

8.1.x  Humidity Sensor Model  : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy (% rel h)     : (% rel h)
       Aspiration             : (UNASPIRATED/NATURAL/FAN/etc)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.2.x  Pressure Sensor Model  : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy               : (hPa)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.3.x  Temp. Sensor Model     : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy               : (deg C)
       Aspiration             : (UNASPIRATED/NATURAL/FAN/etc)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.4.x  Water Vapor Radiometer : 
       Manufacturer           : 
       Serial Number          : 
       Distance to Antenna    : (m)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.5.x  Other Instrumentation  : (multiple lines)


9.   Local Ongoing Conditions Possibly Affecting Computed Position

9.1.x  Radio Interferences    : (TV/CELL PHONE ANTENNA/RADAR/etc)
       Observed Degradations  : (SN RATIO/DATA GAPS/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)

9.2.x  Multipath Sources      : (METAL ROOF/DOME/VLBI ANTENNA/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)

9.3.x  Signal Obstructions    : (TREES/BUILDINGS/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)


10.  Local Episodic Effects Possibly Affecting Data Quality

10.x  Date                    : (CCYY-MM-DD/CCYY-MM-DD)
      Event                   : (TREE CLEARING/CONSTRUCTION/etc)


11.  On-Site, Point of Contact Agency Information

     Agency                   : Federal Office of Metrology and Surveying
                              : Austria
                              : Dept. Control Survey
     Preferred Abbreviation   : BEV
     Mailing Address          : Schiffamtsgasse 1-3
                              : A-1020 Wien
                              : Austria
     Primary Contact
       Contact Name           : APOS - Austrian Positioning Service
       Telephone (primary)    : +43 676 82101111
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : apos.admin@bev.gv.at
     Secondary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Additional Information   : (multiple lines)




12.  Responsible Agency (if different from 11.)

     Agency                   : (multiple lines)
     Preferred Abbreviation   : (A10)
     Mailing Address          : (multiple lines)
     Primary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Secondary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Additional Information   : (multiple lines)


13.  More Information

     Primary Data Center      : OLG
     Secondary Data Center    : 
     URL for More Information : http://www.bev.gv.at/
     Hardcopy on File
       Site Map               : (Y or URL)
       Site Diagram           : (Y or URL)
       Horizon Mask           : (Y or URL)
       Monument Description   : (Y or URL)
       Site Pictures          : (Y or URL)
     Additional Information   : (multiple lines)
     Antenna Graphics with Dimensions

Leica: LEIAT504 L1/L2 Dorne Margolin antenna with chokering
  (designed after DORNE MARGOLIN T)

                         +-------+                          <-- 0.1393
                       /     +     \                        <-- 0.1282 L2
                      |      +      |                       <-- 0.1093 L1
    +-----------------+-------------+------------------+    <-- 0.1020 TCR
    |                                                  |
    |                                                  |
    |                                                  |
    |                                                  |
  +-+--------------------------------------------------+-+  <-- 0.0380 BCR
  +-------------------+-------------+--------------------+  <-- 0.1020 BCR
                      |             |
                      |             |
                      +------x------+                       <-- 0.0000 BPA(=ARP)

  <--                      0.3794                      --


     BPA: Bottom of preamplifier
     ARP: Antenna Reference Point
     L1 : L1 Phase Center                   L2 : L2 Phase Center
     TCR: Top of Chokering                  BCR: Bottom of Chokering
     TGP: Top of Ground Plane               BGP: Bottom of Ground Plane

 Monument description

                     _______
                   /         \
                 /      _      \
                |   ___/ \___   |-- GRP radome
                |  |_________|  |               <---  0.000 ARP
                |_____  |  _____|
                    ||     ||
                    ||     ||
                    ||     ||-- galvanized
                    ||     ||   steel
                    ||     ||
                    ||     ||
                    ||     ||
            -------------------------     <---  roof (penetrated)
                    ||     ||     |
                    ||     ||     |<--- brickwall
                    ||     ||_____|
                    ||     ||_____|<---  galvanized steel fixing
                    ||     ||     |
                    ||     ||_____|
                    ||     ||_____|<--- galvanized steel fixing

---------------------------------------------------------
