Main partners are Nankou Plant of Beijing Vehicle Group, Nankou Plant of SKF, Railway Bearing Co. Ltd of FAG, Wafangdian Bearing Co. Ltd, Luoyang Bearing Group Co. Ltd, Tianma Railway Bearing Co. Ltd of Chengdu, Xuanhua INGERSOLLRAND Corporation, Kailuan Mining Bureau, Datong Mining Bureau，Zhangjiakou Coal Mine Machinery Co. Ltd, UCI Automobile Spare Parts Co. Ltd of the US.
MXD series fluorine rubber oil seal listed as scientific project by Hebei province has advantages in low heat-generating, long life, non deformation and safety, which is used by Zhangjiakou Coal Mine Machinery Co. Ltd. Double-skeleton oil seal is used by Ingersollrand company. Seals for auto water pump has been used by Tianjin ASC Automobile Parts Co. Ltd since 2000, which is very popular in the North America market.
 

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