china manufacture a500 pipe astm a335 p1 p2 p5 p9 p11 p22 p91 hollow structral seamless steel pipes
- USD $500 - $800 / Ton
- 1 Ton / Tons
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china manufacture a500 pipe astm a335 p1 p2 p5 p9 p11 p22 p91 hollow structral seamless steel pipes