Yihai Jia

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Composition used for high-strength and impermeable concrete
- Patent number 8,652,250
- Issue date Feb 18, 2014
- Shengyi Qin
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
COMPOSITION USED FOR HIGH STRENGTH AND IMPERMEABLE CONCRETE
- Publication number 20130104777
- Publication date May 2, 2013
- BEIJING RECHSAND SCIENCE & TECHNOLOGY GROUP CO., LTD.
- Shengyi Qin
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES