... punching,stamping,bending, welding ISO9001; ISO14000 Name One way door locks Item No. TP030817MaterialSECC, stainless steelProcessstamping,punching ... stampingHistoryWe product a series of metal sheet part for 8 yearsMaterialstainless steel, iron ( SPCC, SECC, SPTE, ... injection, black oxide coating and so onMaterial thickness0.8 - 2.0 MMEquipmentincreasing large stamping machine and professional ...