Ningbo Shanzuokou Hardware Factory

Ningbo Shanzuokou Hardware Factory (NingBo YinZhou ChengEn Machinery Co., Ltd.) manufactures mechanical accessories and precision components, including subway and bus interior accessories such as handrails/handles, door lock accessories, and various interior connection parts. The company supports design, R&D, production, and improvement for urban rail transit components, as well as products for new energy buses and infrastructure. Manufacturing processes include casting, CNC machining, forging, extruded, laser cutting, wire cutting, welding, bending, stamped, die cast, electropolish/anodized/heat treat, polishing, and packing & delivery. It holds an ISO 9001 quality management system certification (GB/T19001-2016 idt ISO9001:2015) covering the manufacture of mechanical accessories (handrails, handlebars and door locks), with surveillance audit requirements during the certificate validity period. Products are served to construction hardware applications and used in subway parts, auto parts, and customized parts for domestic and international customers.

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