最好看的日本中文字幕2019_H无码中字动漫在线观看_国产成人啪精品视频免费网站_国产精品亚洲欧美大片在线看

Polymer resins are mainly used in the fields of coatings, inks, adhesives, fabric coatings and finishing agents, leather finishing agents, paper surface treatment agents, and fiber surface treatment agents. Environmentally friendly and odorless coating film-forming agents play an important role in the coating industry. They can effectively improve the film-forming performance of water-based coatings, promote the rapid and uniform formation of coatings, and reduce the emission of volatile organic compounds (VOCs), achieving green and environmentally friendly coating production.