astm a106 schedule 40 carbon erw steel pipe, astm a36 schedule 40 tianjin factory erw black steel pipe/tubes
- USD $400 - $550 / Metric Ton
- 10 Metric Ton / Metric Tons
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astm a106 schedule 40 carbon erw steel pipe, astm a36 schedule 40 tianjin factory erw black steel pipe/tubes