ENERGY-SAVING SELF-SUCTION DEVICE USED FOR PUMP AND PUMP ASSEMBLY
ENERGY-SAVING SELF-SUCTION DEVICE USED FOR PUMP AND PUMP ASSEMBLY
- CN 2,031,461 U
- Filed: 04/07/1988
- Issued: 01/25/1989
- Est. Priority Date: 04/07/1988
- Status: Active Grant
- EN CH
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- Pin
