Zhengzhou, CN
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Patent Grant
ZHENGZHOU ZHONGYUAN APPLIED TECHNOLOGY RESEARCH AND DEVELOPMENT CO., LTD.
Deheng Zhang
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Application
Deheng Zhang
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
