Standard:EN10305-1, EN10305-4, DIN2391, DIN2391-C, SAE J524, DIN73000, GB8713, GB/T3639 Steel Grade:E215, E235, E355, ST30Al, ST37, ST52, 10#, 20#, Q345, 16Mn Size Range:OD4.0~OD76.0 Delivery Condition:NBK,GBK,BK,BKS,BKW, +C, +LC, +SR, +A, +N ...
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