Yangzhong City Yonggong Seal Co. Ltd., Located in the beautiful and fertile Yangtze River Delta, enjoying pleasant climate and convenient transportation, is a professional in production of anti-corrosion ***** company was founded in 1988. By years of development, we have passed the ISO9001:2000 Quality Management System Certification, and have strong technical force, sophisticated production equipment, completes testing equipment, and advanced technology. We implement strict scientific management, and have many years of practical experience in production. With variety, complete specifications and quality, our products are the best-selling domestic products and sold overseas, and gain users&＃039; trust as well as good reputations at home and abroad.</p>