steel ball size的意思|示意

One-way, two-way pressure ball bearing cage generally use steel stamping molding, large size or special use of the bearings are made of brass or mild steel turning cage.

单向、双向压力球轴承保持架一般采用钢板冲压成型，大尺寸或特殊用处的轴承则采用黄铜或软钢车削保持器。

The use of rare earth ball size pulley ink iron casting, both for the convenience of processing, but also so that the performance of steel pulley with good intensity.

大小皮带轮采用稀土球墨铁铸造，既方便加工，又使皮带轮具有钢的性能强度好。