Qingdong LIU

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Honghe, CN

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Patents Grantslast 30 patents

Information Patent Grant
System for smelting tin-containing materials and method for smeltin...
- Patent number 12,319,980
- Issue date Jun 3, 2025
- Duzuo Tang
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM FOR SMELTING TIN-CONTAINING MATERIALS AND METHOD FOR SMELTIN...
- Publication number 20230015594
- Publication date Jan 19, 2023
- YUNNAN TIN CO. LTD. TIN BRANCH
- Duzuo TANG
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
SIDE-TYPE POWDER TOP BLOWN FURNACE AND METHOD FOR TREATING SAME
- Publication number 20230014060
- Publication date Jan 19, 2023
- YUNNAN TIN CO. LTD. TIN BRANCH
- Xingcheng SONG
- F27 - FURNACES KILNS OVENS RETORTS