... ISO9001:2000 certificate. Air cooled screw air compressor, industrial air compressor, electric air compressor, direct driven air compressor, rotary screw air compressorDirect driven/ Air cooling Model GA-22- ... -brand airend, Special motor for low rotation speed air compressor, with SKF bearing, isolation rate is F, ... 134.6250350330019001950500072±2DN100(G 2") screw air compressor direct type GA-22-F