Registered in Ningbo Economic & Technological Development Zone in 1997, Ningbo Jinshan Sealing Machinery Co., Ltd is a private corporation integrating production, research, marketing and trading into a whole. In 2002, the company set up a manufacture base covering a ground area of over 9, 900 square meters and construction area of 8, 200 square meters at Cixi City, where the world largest cross-sea bridge Hangzhou Bay Bridge is under construction. There located Cixi Yinshan Sealing Parts Factory and Cixi Jinshan Shipping Fittings Factory that solely owned by the company. The company is specialized in the production of sealing components and shipping fittings. Its advanced equipment, developed techmology and excellent product quality have won itself a lot of faithful customers. As a member of China Hydraulic and Pneumatic Sealing Parts Association, the company produces JS series sealing spacers, sealing boards, sealing stuffing and sealing machinery which are all inspected to have stable performance and reliable quality by Quality Supervision and Inspection Center of Mechanical and Industrial Sealing Produts. In 1998, its mainstream product, metal twining spacer, won praise for its excellent quality by State Mechanical and Industrial Bureau in national uniform quality spot check. In 2001, it became the first batch that got pressure piping components safety certificates of State Quality Inspection and Quarantine General. It passed ISO9002 certification in 2002. After years of efforts, Jinshan series products have involved in various application fields such as petroleum, chemical industry, power, shipping, papermaking and machinery, etc. They are widely accepted by customers both inside and outside China for their perfect sealing performance, reliable quality and lasting service life. The products have been exported to Japan, Singapore and Malaysia. They are widely used in pump and pipe sealing, pressure vessel sealing and reactor sealing, and proved to be us