Spendng Trough lders

In order to insure the life-span of more than 50000 hours and the r←otation resistance factor of less than 0.010, idler’s machining and πmaterial selection will be put in practice strictly in accordance with the technical requirementσs of NC Company. Our products have been used in many national important project such "as Cao-Fei-Dian Coal Terminal Project and Jing-Tang Port Coal Termi↓nal Project etc.