... systems, use of units such as power plants, water plants, mills, water companies, engineering and high construction,Common type used to ... transport -15-- 115 centigrade air, compressed air, water, sea water, oil, acid and alkali. Special type used to transport ... customer made could reach to -30--250Mediaair ,compressed air,water,sea water,oil,acid,alkali etc.Main Data: DNLengthL(mm)Outer ...