rectangular and square steel pipe 1)O.D.:15*15-1000*1000 2)W.T.:1.2mm-32mm 3)Length:R1,R2&R3 we do not eat your w Product NameSquare Steel PipeSizeOD20~3020mm In TheoryThickness1.0~32mmLengthAny Length Below 16 MeterStandardAPI 5LMaterialGrade B,X42,X46,X52,X56,X60,X65,X70,etcUsagePSL-1 Class IS 100% Qualified To Petroleum And Gas Industry,PSL-2 Can Be Used In Refinery And Chemical PlantEndsPlain ...