Chengyitong Machinery Manufacturing Co., Ltd.

Chengyitong Machinery Manufacturing Co., Ltd. produces precision castings and deep-processed products using the silica sol process, serving customers with precision metal parts and related components. Its main products include valves (ball valves, butterfly valves, and plug valves), pumps and impellers, automotive parts, and building hardware and tool parts, made from stainless steel, duplex stainless steel, carbon steel, and alloy steel materials. The company’s manufacturing process covers mold making, wax casting, shell building, dewaxing, roasting, pouring, shell breaking, cutting, heat treatment, shot blasting, inspection, and machining. Quality and compliance are supported through testing equipment such as spectral analysis, physical and chemical tests, and CMM three-coordinate detection, along with certifications including ISO 9001:2015, TÜV (PED & AD2000), IATF 16949:2016, and LR factory approval. The company serves industries including oil and petrochemicals, food, medical, and automotive, as well as building hardware and tool parts.

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