GOST-8731 10# 20# 45# Hot Rolled Seamless Carbon Steel Tube from TORICH Steel Grade/Steel Material/Steel Number: 10#, 20#, 35#, 45#, 16Mn, 12Crmo, 15Crmo, 12Cr1moV Size Range: OD: 10.3-1200mm WT:1...
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