Hot Rolling Precision Sch80
API 5L Grade B X42 X52 X56 X60 X65
ASTM A53 Grade A Grade B(Type E F S)
ASTM A106 Grade B
ASTM A333 Grade 1 Grade 3 Grade 4 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11
ASTM A179
Seamless/Welded Carbon Steel Pipe
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