Automotive Chain
For Free Samples
Prompt Delivery
Green Product
International Approvals
Experienced Staff
Why choose us?
1. Hangzhou Donghua Chain Group Co., Ltd established in 1991, we have 5 subsidiaries in China and also have 6 subsidiaries abroad;
2. We covering a production area of 200, 100 square meters, have more than 1, 800 sets of advanced equipment and over 3, 100 highly skilled employees, the annual production capacity has exceeded 20, 000, 000 meters;
3. We specialized in producing all kinds of standard chains and special chains, such as A or B series chains, driving chains, conveyor chains, dragging chains, agricultural chains and so on;
4. We have obtained ISO9001, ISO14001, ISO16969, AAA and API certificates.
Fine selection of material & Quality Assurance
Bright annealing to adjust material hardness for finish rolling
Finish rolling technology improving stock thickness dimensional assurance and getting to control the hardness
On-line detection to ensure the technological dimensions
Perfect & Meticulous manufacturing engineering
Industrial Water recycle after treatment
Acid mist discharge after treatment
Pay attention to protect the environment in whole process
Audited Supplier 
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