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Ball bearings are a part of rolling bearings. As a professional bearing supplier and one of the ball bearing manufacturers in China in China, ZWA has its own ball bearing factory and the business covers home and abroad. Compared with roller bearings, ball bearings are point ...
规格:25*16*16,克重:0.16KG ...
Types of Copper Alloys and Their Uses Depending on the types of adhesives, types of copper alloys can be divided into rubber series, plastic series and asphalt series. Asphalt series damping materials are easily accessible, cheap and versatile. The greater the force value of ...