1.used for piston rod
2. can prevent the oil flow
3.piston O-ring is a piston parts

piston O-ring is used for piston rod,and can prevent the oil flow! Piston O-ring is a piston parts.

Dezhou Rundong Petroleum Machinery Co., Ltd. (LKPE) is a high-tech company with design, manufacture, installation and service. The company production site is located at Dezhou in East of College Road of Dezhou Economic Development Zone, registered capital of five million RMB, covering an area of 35mu. The workshop occupies 5000.Over 80 percent of the technician and management personnel are undergraduates and more than 70 percent of the skilled workers are senior engineers.

The company is equipped with CAD/CMA design in the product resear and development.The equipment for manufacturing,measure and inspection are all available.eg:we have equipments with international advanced level for inspecting and analysing metal's chemical composition and material property.