The properties of filled polytetrafluoroethylene (PTFE) composites are introduced in detail. Its applications in hydraulic and pneumatic seal are presented.

本文介绍了填充聚四氟乙烯复合材料的性能，简要介绍填充聚四氟乙烯复合材料在液压气动密封方面的应用。

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The chief products include: Bellows seal globe valve, Free-float steam trap, Pilot pressure reducing valve, Pneumatic control valve, Self-acting temperature-sensing valve, Cyclone separator etc.

目前工厂生产的主导产品有：波纹管密封截止阀、自由浮球疏水阀、先导式减压阀、气动调节阀、自作用式温控阀、汽水分离器等。

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The utility model provides a pneumatic conveying device, which includes a cylinder body, a piston rod, a piston seal, air storage Chambers on two sides, a reverser, and each inside passage.

本实用新型提供一种气动输送装置，包括缸体、活塞杆，活塞封，两侧的储气室，换向器，各内部通路。

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