Qing LV

Follow

Person

Xiamen City, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Low-cost lead-free dezincification-resistant brass alloy for casting
- Patent number 11,028,465
- Issue date Jun 8, 2021
- Xiamen Lota International Co., Ltd.
- Zhenqing Hu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Environment-friendly manganese brass alloy and manufacturing method...
- Patent number 8,568,656
- Issue date Oct 29, 2013
- Xiamen Lota International Co., Ltd.
- Zhenqing Hu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
LOW-COST LEAD-FREE DEZINCIFICATION-RESISTANT BRASS ALLOY FOR CASTING
- Publication number 20180371581
- Publication date Dec 27, 2018
- Xiamen Lota International Co., Ltd.
- Zhenqing HU
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
ENVIRONMENT-FRIENDLY MANGANESE BRASS ALLOY AND MANUFACTURING METHOD...
- Publication number 20110214836
- Publication date Sep 8, 2011
- Zhenqing Hu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...