Roller production (such as trough type roller, self-aligning roller, buffer roller, comb type roller, nylon roller) sealing performance is good, can effective dustproof, waterproof, long life and other characteristics, roller is widely used in coal mine, metallurgy, machinery, ports, electrical, chemical, building materials, food and other industries, the company has strong economic strength, scientific management, advanced production equipment, superb technical team, perfect technology and equipment, strict testing means, and good after-sales service.