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Dongying Changhui Precision Metal Co., Ltd. is an integrative supplyer in mould design , investment casting , polising 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 innovation , while our purpose is to offer the best products and services for our clients . 1 Certificate:ISO9001:2000 2 Material :316SS/304SS 3 Specification: 4 Process:Wax mould design-Wax mould fabrication- Wax injection Combine-Fluid dipping-Dewaxing-Firing-Pouring-Shell removing-Cutting-Hear treatment-Polishing-x-RAY Inspection-Measurement inspection Delivery 5 Small order accepted 6 Treatment:Mirror Polished 7 Customized samples or designs are available 8 Various sizes and designs are available 9 Offering machining service as your requirements or drawings.