... ,LCD display 4)20 years experience 30HP direct coupled air compressor has following feature:JuFeng Screw compressors use Germany air end ... ,F class insulation,SKF load bearing,higher efficiency than similar products by 3%-5%.Control Panel (Chinese,English,Russian,Spanish etc ... (BP NO.46)Lubricant oil BP46 specially for screw air compressor,stable viscosity,high antioxidant,low oil consumption,can use in ...