Hangzhou Donghua Chain Group Co., Ltd is one of the largest chain manufacturers in China.It was founed in November 1991. It has five subsidiaries, such as Hangzhou Ziqiang Chain Drive Co., Ltd. Hangzhou Dunpai Chain Co., Ltd. Hangzhou Donghua Power Transmission IMP and EXP. Co., Ltd. etc.
The company is specialized in producing all kinds of standard chains and special chains, e. G. A or B series chains, automobile chains, stainless steel chains, combine harvester chains, heavy-duty cranked link transmission chains, stereo garage chains and maintenance-free chains etc. In recent years, it invests the capital and depends on the improvement of technology to accelerate the step of new product development and the step of technology reform. It intends to produce high strength and precision chains in order to meet requirements of the domestic and overseas markets.
The company has made much progress: Obtained ISO9002 Certificate of Quality Assurance System in 1996; Achieved ISO9001 Certificate of Quality Assurance System in 1999; In 2002, passed the auditing of the revised ISO 9001 Quality Assurance System, ISO 9001: 2000. Further more, the company also pays important attention to environmental protection: Made a huge investment in establishing a Wastewater Treatment Center to realize the wastewater recovery cycle. In 2002, became one of the first to obtain ISO14000 Certificate of Environmental Management System and gain the qualification of "Green Channel" of Zhejiang Province; Performed ISO 9001 Quality Assurance System and ISO14000 Environmental Management System at a time; In 2004, passed the certification of American Petroleum Institute (API). In the implementation of ISO9001 Quality Assurance System, Donghua gradually forms a complete set of normal and scientific quality management system documents, establishes a whole process of quality control system based on prevention, and sets up a continuous improvement and good circulation system to make its product quality into a steady perfection.
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China (Mainland)
Hangzhou Ever-Power Transmission Co., Ltd. 
