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Tianjin Shengfa Steel Pipe Co., Ltd
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About Us
1) Sizes (O.D. x T): 6 x 1mm to 168 x 10mm
2) Standards: GB/T8163, ASTM, ASTM, JIS, DIN, API
3) Surface: oiled or black painted to prevent rust
4) Marking: as per customers' requirements
5) Commonly used steel grade: 10 20 45 16Mn ST37 ST44 ST52 Q345 B
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