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hangzhou,China
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API 5L X 52 PSL1 Welded Steel Pipe , Oil Industry Carbon Steel Line Pipe
Rectangular Welded Steel Pipe ASTM A513 Grade For Structural Applications
ASTM A554 Welded Steel Pipe , Polished Stainless Steel Pipe 316 / 316L Grade
Carbon Steel Q235 Welded Steel Pipe Square Shape For Construction Industry
Round Shape Industrial Welded Steel Pipe Q235 Q195 Q345 Type Optional