本发明涉及一种计量泵，具体为一种柱塞式计量泵泵头。
The invention relates to a metering pump, in particular to a plunger type metering pump.
加臭泵是专门设计的隔膜式柱塞计量泵，柱塞的运动行程机械锁定，每次输出量保持恒定。
Odorization pumps are specially designed diaphragm plunger metering pump, plunger travel of the exercise machine lock, each time to maintain a constant output.
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