Stainless steel pipe 1.steel pipe, steel tube 2.201,304,304L,316,316L,430 3.thickness:1mm-40mm 4.outere diameter:6mm-830m Stainless steel pipe1.steel pipe2.steel tube3.thickness:1mm-40mm4.outere diameter:6mm-830mm5.200 Series, 300 Series, 400 Series, etc.