air hose
... Air-hardening steel气硬钢，自冷钢 Air hose 输气软管 Air-inlet hole 进气孔 ...
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气体输送软管 gas transfer hose
一种用于生化污水处理的悬挂式曝气充氧装置，由曝气器、输气软管等构成。
The utility model relates to a hanging type aeration and oxygenation device which is used for biochemistry sewage treatment and is composed of an aerator, an air transporting soft pipe, etc.
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