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The DongOu RuiAn Auto Part factory was established at the 1990. It is the first domestic professional factory that produce and develop the height valves of the train, bus and truck with an integrated enterprise. As a result of the good control and comfort, the vehicle with air suspension system gradually replace the metal leaf springs¡¯. Furthermore, using the air suspension system will help a car save around 100KG metal alloy material. And the high valve is the most important part in the air suspension system. With the abroad lastest air suspension system vehicle entered china, our factory have developed more than 60 kinds of high valve products by ourself which absorbed domestic and foreign well-known series of high valve products in a short period of 20 years. Successively we cooperate with the North Neoplane Bus Co., Ltd., Jinhua Youth Bus Manufacturing Co., Ltd., Zhengzhou Yutong Bus Co., Ltd., China Road Machinery Corporation and other famous enterprises. Products were excellent because of cheap, short delivery cycle, the bus manufacturers substantial lifting of import items. The completion of our products to replace imported from plant parts are the role of conversion, and won the trust of their clients at home and abroad. Because of the cheap price and short supply cycle, many of our clients are using our parts to be instead of the imported. It proves that our products replaced the role from the substitute goods of imported parts to our own products , as well as, won the trust of the clients at home and abroad. Since 1991, our product continuely have been exported to Latin America, Cuba, Hungary and other countries. Our Product patentes: ZL 01 207290.7 The quality of products passed through China National Accreditation Laboratory Accreditation, and got the certificate of ISO9001: 2000 Quality System Certification. The TS16949 is applying in. It also has been considered as the recommend products in the European market by the ATN. Products in 2002 passed through the national identification of new products, and list as the technological innovation projects in Zhejiang Province.

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