... steel, stainless steel, aluminum and copper materials with various surface finish including polishing, oiled (rust-prevented), zinc-plated, ... brass, alloy, aluminum etc ( according to clients’ needs)Surface treatmentspolishing, oiled (rust-prevented), zinc-plated, nickel-plated, ... selectingIf producdts need the surface or material finish,the work flow will add the finish procedure or change the work ...