久久久久综合-在线你懂得-日本在线网站-成人av日韩-四虎免费网址-五月婷婷导航-jizz欧洲-综合亚洲欧美-欧美xxxx胸大-天堂av中文在线观看-蜜臀av免费一区二区三区水牛

Patent

Independent R&D and innovation is Shihua's foundation. Shihua has accumulated a number of core independent technologies in polymerization, polymer modification, structure design, formula design, process design and manufacturing.

As of December 31, 2024, Shihua and its subsidiaries have 132 authorized patents in total, including 79 invention patents and 53 utility model patents.

• 132

  AUTHORIZED PATENTS

• 79

  INVENTION PATENTS

• 53

  UTILITY MODEL PATENTS