Hangzhou Qianrui chain manufacture co., LTD is a professional Chain factory. Our Chain products include:a and b series precision roller chains and chains with attachment, bush chains, double pitch chains,motorcycle chains, auto chains, leaf chains, double plus chains,agricultural chains, stainless steel chains, hollow pin chains, zinc-plated chains, nickel-plated chains,dacromet-plated chains, large pitch conveyor chains and special chains as per customer's request. The annual output is over 2,000,000 meters, more than thousands of Tons. Qianrui Chain adopt PROE, CAD, CAM to design and manufacture. Its material is selected alloy steel and heat treatment is advanced. Products completely conform to the international standard and other advanced industrial standards. Performance of chains conforms to demands of customers of Europe,American and Japan. We obtained ISO 9001:2015 in 2021. Hangzhou Qianrui Chain pursuing a policy of "High-quality, Efficiency, Cooperation and Win-win". Right now, we own one production bases with a total area of 10 thousand square meters: Hangzhou Qianrui Chain Manufacturing Co., Ltd and one Export Department: Hangzhou Qianrui Import and Export Co., Ltd. Under the endeavors of more than 200 well trained employees and more than 50 professional technicians, our annual production value has hit 120 million Yuan (20 million USD) and the annual chain production amounts to 7 million meters (21 million feet). Our "QR Brand" chains adopt the advanced and innovative designing techniques such as PROE, CAD, CAM, etc. And are produced with premium quality.