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OTCG Oil Petroleum Casing Tubing J55/K55/N80/L80/C90/T95/P110/Q125/V140 Seamless Steel Pipe, Find Details and Price about Steel Pipe Carbon Seamless Steel Pipe from OTCG Oil Petroleum Casing Tubing J55/K55/N80/L80/C90/T95/P110/Q125/V140 Seamless Steel Pipe - XINBAOLONG STEEL CO..LIMITED