Ningbo Yinzhou Topbon International Trade Co., Ltd is specialized in design, development, manufacture and sale of mechanical seals. There are 10 years since establishment of the company. Productivity has reached 10.000, 000 sets seals per year. Now we are one of the largest scale mechanical seals bases in our country. The ranges involve in: industrial pump mechanical seal, mixer and agitator seal, cartridge seal, metal bellows seal, auto cooling pump seal and auto air-condition compressor lip seal. Hightech products can replace the mechanical seals produced by John Crane and Burgmann and be widely used in petroleum, chemistry, refinery, paper making, pharmacy, power and auto industry.

Our company has strong technical power, and complete testing facilities. For long term, our factory has adhered to quality products, best service and competitive price. Our products are far sold to Europe, U. S. A., and the southeast Asia. They are well received by customers both at home and abroad.