... punching,stamping,bending, welding ISO9001; ISO14000 Name Safe locks for doors Item No. TP030821MaterialSECC, stainless steelProcessstamping,punching,bending, ... mould 4.Produce sample and pack to customer for confirmation 5.Make production Series of metal stamping ... a series of metal sheet part for 8 yearsMaterialstainless steel, iron ( SPCC, SECC, SPTE, tinplate), aluminum alloy,red copper,brass ...