We specialize in producing mechanical operating parts with "Sanshi" brand. Main products: Knob ball, handle jacket, starlike handle, crossed handle, Empaistic handle, milling machine handwheel, round rim handle, and so on. Materials available : bakelite , plastic and metal screw. We can produce according your drawings and samples. Due to the high quality, a reasonable price and perfect sevice, our factory has been commended by the consumers from at home and abroad.