SIZE :219MM(8'')-3050MM(120'') THICKNESS:6MM-25MM MATERIAL:Q235B-Q345B,L175-L485,16MN,L290-L360,X42-X70 SY,GB,API5L PSL-1,2 DESCRIPTION:BLACK STEEL PIPEEXECUTIVE STANDARD:1.API SPEC 5L SPECIFICATION FOR LINE PIPE.2.SY/T5037(CHINESE STANDARD)FOR LOW PRESSURE LIQUID TRANSPORTION.3.GB/9711.1(CHINESE STANDARD)PETRDEUM AND NATURAL GAS INDUSTRIES.4.DIAMETER SCHEDULE:SizeNo.(O.D x Wall Thickness)mmNo.(O ...