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Grade 243 CE Certificate Carbon Steel Seamless Pipes Hot Drawn ERW Pipe2018-06-21 10:11:03 |
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ASTM B165 B622 Seamless Steel Pipe , Cold Drawn Precision Seamless Pipe2018-06-21 10:11:03 |
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Round Seamless Alloy Steel Pipe , Carbon Steel Seamless Tube IBR Approved2018-09-03 17:22:05 |