rectangular and square steel pipe 1)O.D.:15* ... do not eat your w Product NameSquare Steel PipeSizeOD20~3020mm In TheoryThickness1.0~32mmLengthAny Length ... , Beveled, Or Weld With FlangesPlastic Caps And Steel Rings Can Be Provided If PossibleSurfaceBared, Galvanized, Oiled ... Trading,OthersN/A1.Some pictures about Galvanized square steel tube for your reference2.Shipping3.Packing4.Company certification5 ...