Supply FAST polyurethane dust seals

Mine hydraulic support repair special polyurethane dust ring for one hydraulic support repair professional development of the coal industry and the production of a range of products. Product complies with Q / XXY-402-80, GB10708.3-89 standards. The product uses polyurethane materials accompanying the turning process. Its professional and strong, rigidity, abrasion resistance, excellent sealing effect, high quality, reliable performance in the industry and the country has been in the lead. Specifications: JF40 × 56 × 6.5 and other specifications of packaging: film bag & carton