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gb t 9711 l690 ssaw pipe Steel plate Q235B Steel Plates

gb t 9711 l690 ssaw pipe Steel plate Q235B Steel Plates ...gb t 9711 l690 ssaw pipe Steel plate Q235B Steel Plates. Description GB/T9711-2011 PSL1 L175 SSAW pipe gb t 9711 l175 psl1 pipeline steel specification - SCH40 ...API 5L PSL1 PSL2 CS AND Alloy SSAW Steel Pipe Tube GB/T 9711.2-1999 Delivery of petroleum and ...

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gb t 9711 l175 psl1 pipeline steel specification - SCH40 gb t 9711 l690 ssaw pipe Steel plate Q235B Steel Plates

API 5L PSL1 PSL2 CS AND Alloy SSAW Steel Pipe Tube GB/T 9711.2-1999 Delivery of petroleum and natrual gasindustrial transportation steel pipe Technical conditions Part 1 Grade-B Steel Pipe; SY/T5037-2000 Spiral submerged are welding steel pipe for low-pressure fluid delivery pipe. API L175 - PSL1 API SPEC 5L - BBN STEEL STORES gb t 9711 l690 ssaw pipe Steel plate Q235B Steel Platesgb t 9711 l690 ssaw pipe Steel plate Q235B Steel Plates gb t 9711 l690 ssaw pipe Steel plate Q235B Steel Platesgb t 9711 l690 ssaw pipe Steel plate Q235B Steel Plates. Description GB/T9711-2011 PSL1 L175 SSAW pipe

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