In 2011, he applied for the national invention patent "manufacturing method of water white hydrogenated rosin"
Time：2020-08-19
Guangxi Wuzhou Richeng forest products Chemical Co., Ltd. applied for the national invention patent "manufacturing method of water white hydrogenated rosin" (Publication No.: 2011110024754.7) in 2011.
Guangxi Wuzhou Richeng forest products Chemical Co., Ltd. applied for the national invention patent "manufacturing method of water white hydrogenated rosin" (Publication No.: 2011110024754.7) in 2011.