... . Material: aluminum alloy , iron, stainless steel .2. For machine use3. For processing: stamping ,die casting , CNC lathes, milling machine, deburring, ... satisfactory and highly qualified supplier combining mold-opening, die-casting, finishing and spraying one-stop services.We believe our company ... any time. Welcome to Ningbo Zhouchi Industry Co., Ltd. Steel Corner protector /metal corner protector