metal finishing,antique finishes,Brass (mirror & satin),Chrome (mirror & satin),Copper,Gold,Silver,Nickel (bright & dull),Tin (bright & matte),Zinc-clr/ylw/blk/olive/all chromates/seals,barrel/rack,burnishing,masking,polishing/buffing,degreasing,passivation,bright dipping/antiquing,salt spray & thickness testing,deburring/degreasing,xray/atomic absorption testing