Since 1982, DMHUI has been a major sealing product manufacturer and solution provider in China.

Relying on more than 40 years of technical accumulation, we promote lean and digital assembly line production mode to ensure that our products have excellent quality, high consistency and large-scale delivery capabilities, and continue to provide customers with efficient and reliable sealing solutions.

DMHUI focuses on designing and manufacturing: construction machinery oil seals, large agricultural machinery oil seals, commercial vehicle oil seals, industrial oil seals and other customized rubber products.

DMHUI rotary shaft seals fully cover dynamic seals, static seals and extreme working conditions. After unremitting efforts, DMHUI brand sealing products have been recognized by manufacturers and dealers in the fields of oil drilling, construction machinery and agricultural machinery.

Our R&D department staff has rich professional knowledge. DMHUI is equipped with the most advanced rubber preforming machines, fully automatic vacuum vulcanizers and hundreds of advanced processing and precision testing equipment. Therefore, we can complete customized orders according to drawings or samples.

We have established a material laboratory to test all raw materials and conduct research on the most advanced materials.

       In 2024, the "DMHUI" trademark was officially transferred to Demeihui Seals and completed the Madrid International Trademark Registration, marking the full acceleration of the brand's internationalization strategy. In order to efficiently respond to market demand, the company has established branches and warehouses in Ningbo and Shenzhen to build a global sales and service system.