GB/T9711-2011 L625Q/X90Q PSL2 LSAW pipeline is an industrial steel pipe,it has good mechanical properties and chemical properties. L625Q X90Q PSL2 LSAW pipeline is mainly used in electric power, machinery, gas cylinders, chemical industry, shipbuilding and petroleum service.its surface can be painted black paint, black paint, transparent oil, hot galvanized, 3PE , Epoxy coatings, BE, PE, and so on.