Ningbo Shuanghai Machinery Manufacturing Co., Ltd. has a history of more than 20 years, equipped with 40 sets of CNC machines, 13 sets of MCs and hundreds of professional equipments. The products include machinery parts, hardware tools, shafts, sewing machinery parts, auto parts, moulds, valves, etc.
Ningbo Shuanghai Precision Casting Co., Ltd. produces various kinds of precision castings made of carbon steel, alloy steel, ductile cast iron, grey iron, stainless steel, etc. The maximum weight of the casting is 5kg, and the minimum is 2g with minimum wall thickness of 1.5mm. Our annual productive capability is 1,000ton. We can develop independently according to the drawings and make moulds by ourselves.
The company has got the certifications of ISO 9001, ISO14001 and TS16949. We also strictly comply with the standards of American ASTM, Japanese JIS, Germany DIN, etc.