... part etc Stamping punching part, Zinc Plated Mild Steel Stamping Certification: ISO9001-2000 1. Material: iron, carbon steel, stainless steel ,brass, aluminum and other ... , bending ,CNC lathes, milling drilling,grinding etc5. Surface treatment: Zinc plated,power coated,chrome plated,hot-dip galvanized or others6. Packing: wooden ...