Applications: Widely used in all kinds area such as machinery,water pump, aircompressor, also suitable to the occasion not contain flammable and explosive gas orcorrosive gas while during the transportation, mixing, printing etc.Features: attractive appearance, high efficiency,energy saving, low noise, litle vibration,smooth operation.Circumstance for use:The altitude not exceeding 1000m abovesea level.The ambienttemperature subject to seasonal variations but not exceeding +40'℃ and not less than .15℃.