) Compact configuration, tiny bulk, light and operate skillfully and
conveniently.2) It adopt three dimensional eccentric elasticity or multiple
layers hard sealing configuration, the hermetical capability can reach to zero
leakage.3) This kind of valve with no flange, which makes pipe elegantly and
binding up conveniently.4) It have characteristic of high temperature
resistant, high pressure resistant, antisepsis, wearable, etc. >>