... punching,stamping,bending, welding ISO9001; ISO14000 Name School door lock security Item No. TP030816MaterialSECC, stainless steelProcessstamping,punching,bending,riveting Loading ... a series of metal sheet part for 8 yearsMaterialstainless steel, iron ( SPCC, SECC, SPTE, tinplate), aluminum alloy,red copper,brass, ... # Warehouse # Carton package # Wood package # Mold School door lock security