201 Stainless Steel Bar 1.Material:200,300,400series 2.Surface: ... 3.Standard:JIS, ASTM, AISI, DIN. 201 Stainless Steel BarOur Strength Since 1992, nearly 20 years of experiment and ... and the roughness is controlled not more than 5um. Stailess Steel Bars Stainless Steel Pipe Specifications GradeTP 202,TP 304, TP 304L, ... industry4, Spinning and weaving5,Instrument and apparatus. 201 Stainless Steel Bar