... Union door locks accessories OEM supplier for metal part punching,stamping,bending, welding ISO9001; ISO14000 Name Union door locks accessories Item No. ... Design mould 4.Produce sample and pack to customer for confirmation 5.Make production Series of metal stamping ... of metal stampingHistoryWe product a series of metal sheet part for 8 yearsMaterialstainless steel, iron ( SPCC, SECC, SPTE, tinplate ...