... &400series CR material 201 stainless steel pipe1. Standard: ASTM A240, JIS G4304, G4305, GB/T 4237, ... HL,MIRROR,NO.1-NO.4,8K,and so on.StandardASME, ASTM, EN ,BS,GB,DIN, JIS etcMaterial201 ... heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster ... .NO.1The surface finished by heat treatment and pickling or processes corresponding there to after ...