Founded in 1984, Hangzhou xingda machinery co.,ltd specialized the development, manufacture and sales of machanic products. The factory has more than 33000 square meters workshop, with 100 sets advanced process machines test equipments. Our main produces ...

Gold Stone is involved in designing, producing and trading general machinery parts. Our products include: standard special sprockets, various chains, gears ,teethed racks, pulley wheels belts, taper bushings, couplings, PTO shafts, timing torque ...