They produce everything from small vent covers that would appear in a house to wall-sized, industrial air intake units.

INFASA公司生产的产品包括从小型的通气管盖板到整个墙壁大小的工业型通风装置。

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Playtex Ventaire Replacement Vent Disks - 2PK)Product DescriptionProtect your baby from excess gas intake with the VentAire bottle.

倍得适替换排气盘（2个装）产品介绍保护婴儿在用排气泡奶瓶时防止吸入过多的空气。

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These valves use a screw type valve instead of a simple flap, and they have a pressure regulating mechanism that will vent water to the ground if the intake pressure exceeds a set level.

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