... :ISO,SGS 5.Standard:AISI,ASTM,EN,DI 1.Name:Stainless steel handrail 2.Grade:200,300,400series201 (1Cr17Mn6Ni5N)202 (1Cr18Mn8Ni5N)301 (1Cr17Ni7)302 ... .We are a big factory that specilize the production of stainless steel .Such as angle bars,flat bars,square bar,hexagonal bar ...