GB/T9711-2011 L485Q/X70Q PSL2 LSAW pipeline use of hot-rolled process,L485Q/X70Q PSL2 LSAW pipeline is mainly used for conveying water, gas, air, oil and heating hot water or steam,general low-pressure fluid,its surface can be exposed, galvanized, paint, color paint, 3PE,other anti- chemical composition and mechanical properties can be analyzed, size and visual inspection, non-destructive examination.
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