... pipe 1,we ues the first grade material in China. 2,advanced testing equipment. 3,competitive price . stainless steel pipe 3091 ... :Diameter:6-610mm Wall Thickness:0.5-60mmO.D:3/8",1/2",3/4",1",1 1/4",1 1/2",2",2 1/2 ... ",3",3 1/2",4",5",6",8",10",12",14",16",18"W ...