OUR professional Sales: sprocket, and chain, is gear, rack, bevel gear, worm, the worm, pulley, hand wheel, handles, small precision universal joints, couplings, the worm reducer, gear reducer.

• 本店专业销售：链轮，链条，正齿轮，齿条，伞齿轮，蜗轮，蜗杆，皮带轮，手轮，手柄，小型精密万向节，联轴器，蜗轮减速器，齿轮减速机。