One, our company produces salvage grab, seal, using labyrinth pulley bearing so long use life.
其中、我公司生产的打捞抓斗，滑轮轴承采用迷宫式密封，这样使用寿命长。
Our company adopts Japanese technology, Using labyrinth seal, pulley bearing and makes the time of use longer.
我公司疏浚抓斗采用日本技术，滑轮轴承采用迷宫式密封，大大提高了抓斗的使用寿命。
A motor shaft gap used for a sealing plate for a seal air channel is left between the belt pulley and the end cover of the motor shell.
在皮带轮同电机机壳端盖之间保留供密封风道用的密封板穿过的电机轴空隙位。
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