oil suction pipe
常見例句
- A one-way valve is installed on the oil outlet pipe, and the utility model has the advantages of simple structure, rapid discharge and suction, convenient operation and low cost.
在出油管路上裝有一個單向閥。本吸油器的優(yōu)點是結(jié)構(gòu)簡單、排吸快、使用方便、成本低。
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