stainless steel316/304, mirror polishing only one specification:84mm*29.5mm*15mm*60.5mm*50mm Dongying Changhui Precision Metal Co., Ltd. is an integrative supplier in mould design, investment casting, polishing and precision machining. We are specialized in the products made of stainless steel, carbon steel, alloy steel ect. We have established the ISO9001Quality Management System .Our culture is ...