Steel Grade:Q195–Q345,S235JR,S275JR,S355JR,GR.B-D,
STK500
Standard:GB/T3091–2001,BS1387–1985,DIN EN10025,EN10219,JIS G3444:2004,ASTMA53 SCH40/80/STD,BS-EN10255-2004
Surface Finish:hot dipped galvanized ,electro galvanized ,black,painted,threaded,socket,engraved.
Outer diameter (...
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