Steel Grade: Q195–Q345,S235JR,GR.B-D,STK500
Standard:GB/T3091–2001,BS1387–1985,
DIN EN 10025,EN10219,JIS G3444:2004,
ASTM A53 SCH40/80/STD,BS–EN10255–2004
Surface Finish:pre galvanized ,threaded,socket,engraved,
painted
Outer diameter (inch ):1/2’’—4’’
Thicknes...
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