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Dongying Haihe Machinery Co., Ltd is a professional manufacturer of investment castings, lost wax castings or precision castings. And both of sodium silicate and silica sol process had been adopted. We mainly produce stainless steel castings, carbon steel casting and alloy casting ,Iron,copper and aluminium casting parts . We have both metallurgical engineer, quality control technician Staffs and spectrometer chemical analysis machine, three-dimensional dimension inspection machine and 8 pieces CNC and mach...
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