... oxygen resin spraying, the heat disposing, hot-dip galvanizing, black oxide coating, painting, powdering, color zinc-plated, blue black zinc-plated ... engineer and dedicated QC.About usOur company was founded in October, 2000, specializing in the production of CNC/AUTO lathe, springs, shafts ... .alibaba.com Brass/SUS/Aluminum union and pipe and bushing in guangdong