Stainless steel pipe models can be divided into: 201, 301, 302, 304, 304L, 309, 316, 420, 430, 440 and so on

Stainless steel pipe sizes include DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250 and DN300, etc