Binzhou, Shandong, CN
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Patent Grant
YIFENG NEW MATERIALS CO., LTD.
Chao Zhang
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Application
SHANDONG EFIRM BIOCHEMISTRY AND ENVIRONMENTAL PROTECTION CO., LTD.
Chao ZHANG
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
