... ,CE,ATEX passed 3. double acting and spring return 4.rack and pinion type Pneumatic actuator 1.ISO9001, CE ... -piston2.The extruded high-quality aluminum alloy cylinder ,its longer service life and low friction coefficient.3.Unibody design ... new international standards ISO5211 and DIN3337(F03-F25). Rotary actuators,Gear Rack and pinion pneumatic actuators, Aluminium alloy or stainless steel pneumatic ...