... and power 1. Rotorcomp screw compressor have got ISO9001, CE, ASME,UL certificates and are exported to many countries, ... dryer.3. Rotorcomp screw compressor features: Germany technique and air end, Schneider contactor, England shell oil Auto protect and alarm, ... 1)electricity powered 2)oil lubricated 3)Germany air end 4)CE certified 5)energy-saving 6)environment-friendly Applicationwidely used ...