KCB造句怎么写
- 造句
- 关注:2.81W次
KCB-300 ~ 960 type pump adopts mechanical device, bearing the single cut to the heart ball bearings.
KCB gear pump are mainly gear, shaft, pump body, valve, shaft end seal.
KCB- 300 ~ 960型泵采用机械密约装置,轴承采用单列向心球轴承。
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