2022国产男人亚洲欧美天堂,又粗又大又爽成h人视频

亚洲五码观看,看AV的资源网站,色老久久精品偷偷鲁,欧美xx精品,青青成线在人线免费啪,亚洲欧美中文日韩aⅴ,双飞国产视频,伊人久久情人综岁的合网18,中文字幕玖玖资源站zyz,久久人人爽爽人人爽人人片AV,欧美专区亚洲专区,色偷一区国产精品,少妇太爽了手机在线观看,精品免费久久网,精品国产杨幂在线观看福利,亚洲欧美日本中文字不卡,国产精品亚洲一区二区杨幂

About Us

Zhuzhou Hongda Polymer Materials Co., Ltd. was founded in 1999 and is located in the Zhuzhou National High tech Zone - China Power Valley, covering an area of 50000 square meters. We are a national high-tech enterprise specializing in the research and development, production, and application integration of high-performance fluoroplastics.
The company has successively won honors such as the National Manufacturing Industry Single Champion Enterprise, the National Specialized and New "Little Giant" Enterprise, the National Intellectual Property Advantage Enterprise, the Vice Chairman Unit of the Fluoroplastic Processing Professional Committee of the China Plastics Processing Association, and the "Outstanding Contribution Award" for the Chinese Fluoroplastic Processing Industry. The company has subsidiaries including Hunan Hongda Environmental Protection Technology, Zhuzhou Hongda Industrial Materials, Japan, and Singapore. The company has a professional technical team of more than 50 people led by experts who enjoy special allowances from the State Council. It has established two provincial-level technology research and development platforms, the "Hunan Special Engineering Plastic Engineering Technology Research Center" and the "Hunan Enterprise Technology Center". The company leads and participates in the development of five national and industry standards, including "PCTFE Rod" and "PVDF Plate", and has applied for more than 80 patents, including more than 50 authorized core patents for fluoroplastics. It is a leader in China's meltable fluoroplastics industry. Enterprise.
The company has successively passed international system certifications such as ISO9001, ISO14001, ISO45001 for quality, environment, occupational health and safety, and is a national level green factory. For many years, the company has been based on high-performance fluoroplastic profiles and extended to five major application areas downstream: special seals, semiconductor materials, high-end environmental protection equipment, water treatment components, and lightweight rail transit. It has broken through cutting-edge technologies in multiple fields and successfully achieved localization by breaking foreign monopolies. The company's core products are exported to more than 50 countries and regions at home and abroad.
While pursuing the dual happiness of all employees, the company is always committed to providing users with the most valuable overall solutions in the field of high-performance fluoroplastics, and contributing to social progress and development!

+86-731-22321606 ywt@hongdapolymer.com

Quick link

Contact Us

leave a message