Wenzhou Changmi Airtight manufacturing Co., Ltd. is a joint venture set up in 1984, whose products focus on mechanical seals used in all kinds of pumps. The products abound with Silicon Carbide rings, graphite Carbide rings, Tungsten Carbide rings, rubber seals and the like.

We're paying our attention to advanced managing methods and technologies, researching and producing new types, more available testing measures to adapt the markets home and aboard.

We've got much credit and winning so many clients with our high-qualified products, good after-sales service and honest. It's stepped into the steady and prompt orbit of development. The scale of our company is becoming lager and larger.

The company has established and maintains a quality system ISO9002: 1994 and ISO9001: 2000. Our products are widely used in petrochemical, oil refining, power industry, light industry, food processing, pharmaceutical and waste water treatment and other industries. The products are sold well in home and abroad market. The major markets comprehend Europe, America, Africa, South-east Asia, USA and so on.

Our philosophy is honesty cooperation, affording the best products and credit service. We welcome all new and old clients to contact us and develop a mutual beneficial business relationship with us.