HydrHydrHydraulics PneumaticHydraulics Pneumatics & Seals,by General
Administration of Press and Publication , is a bimonthly magazine organized by
China Hydraulics Pneumatics & Seals Association. It mainly focus on engineering
technician and management personnel from the enterprises 、research institutes
、universities and colleges .Hydraulics Pneumatics & Seals is published both at
home and abroad, and it has already been the 125 issue since its founding from
1981.