色播婷婷电影综合社区,AV女优不卡亚洲在线,99999AV,日韩人妻中文字幕视频,国产拍自偷,91人人妻,超碰在线81,免费福利视频一区,九草青草原在线看

Zhejiang Donghua Industrial Co., Ltd., established in 1985 and located in Quxi Town, Wenzhou City, is one of the large-scale and influential enterprises in the field of leather finishing and shoe upper modification in China. It is recognized as a high-tech enterprise, hosts the provincial-level high-tech R&D center for Donghua Leather Chemicals, and is a drafting unit for the industry standards of polyurethane leather finishing agents. The company maintains long-term technical exchanges and industry-university-research collaborations with major domestic universities, research institutes, and international leather chemical manufacturers, consistently holding a leading position in the field of leather chemical materials.

The company operates with a modern management model, advanced automated production lines (DCS system), and comprehensive precision testing instruments. Additionally, a strong and stable R&D team along with technical service personnel provides users with the most effective technical support and satisfactory after-sales service!

The company's main products include eight categories such as fillers, penetrants, repair agents, acrylic resins, polyurethane resins, comprehensive resins, brighteners, and auxiliaries, totaling over 200 varieties. These high-quality leather chemical products cater to various leather manufacturers. Over the years, adhering to the philosophy of continuous improvement and a user-first principle, the company has upheld the business ethos of "integrity and rationality." It has been awarded numerous honors, including provincial and municipal science and technology progress awards, and the title of district integrity enterprise. In 2008, the Donghua trademark was recognized as a "China Well-known Trademark." Notably, products such as "DA Full-Grain Filler" and "Thermally Expansive Hollow Microsphere Leather Matting Repair Agent" have received accolades including National Key New Product, Provincial High-Tech Product, National Torch Program Project, and the Third Prize for Science and Technology Progress in Zhejiang Province. The company is also engaged in the production and sales of shoe upper modifiers, providing guidance and technical support to a broad user base.

For two decades, Donghua has been dedicated to research in production and application technologies within the leather finishing sector, emphasizing the introduction, development, and industrial promotion of advanced technologies. It strives to provide high-quality products to the domestic leather industry and share cutting-edge global leather chemical technologies in a timely manner. While delivering superior products, the company also brings ** technical services directly to its customers. In the field of leather finishing, Donghua is poised to embrace new challenges with a renewed attitude, fully committed to creating ** technical services!