Established on the basis of former Sealol Xi&＃039;an Mechanical Seals Co. Ltd. By purchasing all stocks of EG&G Sealol Xi&＃039;an Yonghua Group Co. Ltd. Is specialized in welded metal bellows seals, pusher seals and high performance seals. With qualified technicians, we are powerful in all respects. The established long term relationship with a lot of universities and institutes all over the country guarantees that our products will meet the highest international quality standard. We are entirely devoted to the application of advanced American computer design, software, welding and heat treatment equipment, test rig, inspection equipment, abrasive equipment and quality controlling system, as well as the basis of scientific management. Our products vary from the low temperature series to high temperature ones, from single and double side seals to tandem ones, from highly corrosive to nuclear power industry. The adoption of special materials and imported materials at key parts eliminates the effect of high abrasive and high corrosive liquid on the seal life. The unusual design of a 45 tilt edge at the bellows inside diameter to disperse stresses maximizes the operating life under various circumstances. We successfully past the ISO 9002 Quality System Certification, established the quality management system. Now, the mechanical seals produced by Xi&＃039;an Yonghua are widely used in different fields such as nuclear power station, petrochemical, chemical, refinery, paper, chemiacal fiber industry, the some parts of products have exported to many foreign countries and enjoyed the highest honor at home and abroad. We will make a greatest contribution to world and China economic prosperity with all consumers.