[Materials] Equivalent to SWCH, Equivalent to SUS307J3
[Surface treatment] None, Non-chrome black, Trivalent chromate non-chrome plating white, Trivalent black, Trivalent white, Bright chromate plating, Chromate plating, Chromate plating, Black chromate, Nickel plating, Chromate plating, Stainless steel coating, Stainless steel coating, Trivalent stainless steel coating