... Consist of inner rubber,Jinlun reinforced rubber and loose metal flange,ith high pressure chracter, good elasticity, displacement volume, balance ... water, oil, acid and alkali. Special type used to transport -30--250 centigrade over the medium or oil, strong alkali ... reach to -30--250Mediaair ,compressed air,water,sea water,oil,acid,alkali etc.Main Data: DNLengthL(mm)Outer Diameter of flange D (mm ...