... AISi10Mg T6 treatment wearproof anti high pressure, high accuracy Yongkang DaJan electromechanical Co.,Ltd. was established in 1985 .Its former was Collective Ownership ... and convenient transportation : NO.6 Longtai Road, Longshan Town ,YongKang City ,ZheJiang Province, China. Since was established, our company devotes to the ...