QUALITY

The company pursues lean production, strictly in accordance with the ISO9001 quality system requirements control and implementation of ISO/ts 16949:2002 quality management system.

UNOBSTRUCTED

At present, Qunying screw have a professional design experienced production team. We are located in east of Zhoushan City, Zhejiang Province, close to Shanghai, Ningbo port.

STRENGTH

Our factory is a domestic enterprise that adopts customized screw products made of German zinc No. 3 steel and powder alloy high-speed steel. We adhere to using high-tech materials to expand the market, adhere to using good materials, coupled with reasonable process design, and through refining processes such as quenching and tempering, molding, qualitative analysis, nitriding, precision grinding, and polishing, we have manufactured ultra hard medium plastic cylinder screws that are resistant to wear, corrosion, and fracture. To meet the needs of our customers