... spraying, the heat disposing, hot-dip galvanizing, black oxide coating, painting, powdering, color zinc-plated, blue ... etc.Testing EquipmentProjecting apparatus, Salt Spray Test, Durometer, and Coating thickness testerWorkforceA group of experienced production technician, ... shafts, screws, stamping parts and other metal parts. Our main production modes are designing and proofing based on customers’ ...