One way door locks OEM supplier for metal part punching,stamping,bending, welding ISO9001; ISO14000 Name One way door locks Item No. TP030817MaterialSECC, stainless ... of metal stampingHistoryWe product a series of metal sheet part for 8 yearsMaterialstainless steel, iron ( SPCC, SECC, SPTE, tinplate ... Punching & Riveting workshop # Warehouse # Carton package # Wood package # Mold One way door locks