Accuse lukewarm type vacuum cup
The interior space vacuum cup is fluctuation with space of heat preservation secondary floor two. Superstratum is natural cooling zone, lower level is close heat preservation area, fall to close the boiled water of heat preservation area undertakes closing heat preservation, need drinkable when, close the boiled water of heat preservation area transfers refrigeration of natural cooling zone to arrive after comfortable and drinkable temperature with orgnaization of boiled water move drinkable, this vacuum cup is in keep drinkable do not iron not cold circumstance to fall from beginning to end, time of its heat preservation compares the times time of 0.5-1 of vacuum cup growth that is the same as heat preservation quality at present, have heat preservation time to grow, drinkable not very hot from beginning to end not cold, the structure is simple. Transform investment little, market prospect is wide, demand is big, do not affect outside the cup beautiful.