Standard: JIS, AISI, ASTM, DIN,GB Thickness: 0.3mm-3.0mm Outer ... 159mm Mutual reciprocity and mutual benefit Standard: JIS, AISI, ASTM, DIN,GBThickness: 0.3mm-3.0mmOuter Diameter: 6mm-159mml ... Mirror finishApplicationDecoration construction, upholstery, industry instrumentTestSquash test, extended test, water pressure test, crystal rot test, heat treatment, NDT Material201202304316430 Composition C≤ ...