... 固定印字盒 fixed type box 印盒型煤 seal box briquette 空印盒 THE LOST SEAL ...
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All the Y-type valves are provided with sealing plates, in particular, the "floating" sealing plates which are fixed to the surface of the manifold box by the air pressure in the bag.
所有Y型阀的装配方式都配有密封垫，特别是“浮动”密封垫利用分气箱内的空气压力固定在分气箱表面。
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