Rotating rings of domestic and imported brand: (1) Germany RUD, early entry into the domestic market, high-profile supply specification, are not cheap; (2) Sweden GUNNEBO, the world's main push the G100 level lifting accessories, types than the whole, certified by BG (German Federation of employers' liability insurance), the rotating rings were by foreign or joint ventures designated as wind power generation equipment and coal mining machinery, specifications are available from stock from the M8-M48; G100, level Swedish GUNNNEOB rotating rings (a) (3) American JERGENS, major suppliers of various fixture standard parts, for industrial off, rotating rings more in the form to choose from. (4) YOKE, the world's second largest hook rings manufacturers, franchised G80 level lifting accessories. Rotate the rings main supply European and American markets, good price, supply specifications of the M8-M48, but is not yet available from stock, it shall direct order in Taiwan.