Utility model patent certificate (a bearing component that can dissipate heat)

Utility model patent certificate (a bearing component that can dissipate heat)

Utility model patent certificate (a self-balancing multi-stage pump with auxiliary blades of the last stage reverse impeller)

Utility model patent certificate (a self-balancing multi-stage pump with auxiliary blades of the last stage reverse impeller)

Utility model patent certificate (a special packing gland for water pump)

Utility model patent certificate (a special packing gland for water pump)

Utility model patent certificate (a kind of vent plug)

Utility model patent certificate (a kind of vent plug)

Utility model patent certificate (a device for cavitation demonstration and testing of cavitation characteristics of materials)

Utility model patent certificate (a device for cavitation demonstration and testing of cavitation characteristics of materials)

Utility model patent certificate (a self-balancing multi-stage pump)

Utility model patent certificate (a self-balancing multi-stage pump)

Utility model patent certificate (partially open or semi-open impeller double suction open centrifugal pump)

Utility model patent certificate (partially open or semi-open impeller double suction open centrifugal pump)

Utility model patent certificate (open or semi-open impeller double suction in the open centrifugal pump)

Utility model patent certificate (open or semi-open impeller double suction in the open centrifugal pump)

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