As a renowned one-stop OEM factory in China, Aopan is committed to providing customers with OEM seals to avoid wasting a lot of time looking for factories and obtaining source information from China, ultimately enhancing their competitiveness.

Aopan excels in metal parts, PTFE, rubber, UHMWPE, PA66, compressed asbestos-free fibers and polyurethane seals. Particularly, PTFE-coated rubber seals have been applied in many facilities such as chemical dosing pumps, industrial valves and dehumidifiers.

Established in 1992, at the beginning, distributors and a few companies required us to produce PTFE seals based on samples and drawings. We began to help valve companies OEM PTFE parts for valves in 2002 and provide PTFE-encapsulated CNAF gaskets, mancover seals and PTFE-encapsulated O-rings according to customer requirements. Over the years, Aopan has OEM many different seals and understands the requirements and application fields. We recognized our OEM capabilities and advantages and decided to start an international business. This is a big stage, an opportunity and a challenge.

In 2018, Wencheng started its CNC machining business based on the precision machining experience it had accumulated before. We can provide OEM services for a wide range of metals including stainless steel, carbon steel, iron, brass, aluminum, cast iron, etc. The service areas include aerospace, vehicles, large machinery, hardware and chemicals, oil and gas pipelines, logistics, etc.

Now you can see many OEM parts on the website, which indicates that our products are widely used in many fields. Aopan has evolved from a supplier to domestic distributors to serve some of the world's valuable companies, covering areas such as valves and fittings, energy, oil and gas, fluid handling facilities, ISO tank containers and cleaning. With extensive and successful contacts in numerous different fields, Aopan has earned a reputation in OEM seals to cooperate with more international friends.

Subsidiary under its name: Wencheng Sealing