In 1984, Qiangzhen was founded in Ruian, Zhejiang, which is well-known as the city of Automobiles & Motorcycles parts. At the earlier stage, we mainly produced non-standard fasteners for general industrial application. In 1992, we started cooperation with Dongfeng Chaochai Diesel, supplying them fasteners with high-strength, high temperature and high-precision that applied in diesel engine. This makes us transfer our business mode into direct supplier with auto parts and car makers. The key to win the client trust is continuous improving the quality and fast reaction to client demand.Till now,we are the tie one suppliers for more than 20 auto parts and car makers, Such as SAIC MOTOR, SHANGHAI GM, Chery Automobile, BYD AUTO, Great wall Motor, Geely Auto, GAC Motor, BAIC Motor, Tangshan Aisin, and won many awards from them, such as Chery Core Supplier, and Aisin Excellent Supplier.

　　Presently, we equipped with the whole procedures to produce a fastener and can satisfy clients with different customized demands.Our procedures start from cold/hot forging, threading, CNC machining, heat treatment, major surface treatments and ends with 100% auto inspection. We focus on auto fasteners with strength BTW 8-12.9 class, which makes us stand out among the fasteners suppliers in china.

　　We adopt IATF16949， Toyota Production System,QSB Quality System and ERP system to run the company. Through continuous improving of the production site management and production cost management reaches the final aim of producing the most competitive fasteners for the serviced clients. Our slogan is we just want to do it better, and the quality management target is zero defect.

　　Our annual supply ability is 800 million PCS, the actual production and office area is 100,600 square meters, which includes.one office building, 7 workshops and one modern 4-floor building. The building is the comprehensive production area for all kinds of surface treatments. The total staff number is 350, 70 of them belong to management department, 50 of them belong to R& D department. We have passed IATF 16949 quality management system certification in 2018. Our vision is improving our quality to world class by 2025, till then we will supply you the better products and services, welcome to choose us!