This is a difficult problem to solve, because mineral water is cheap, and if sealing equipment is used on it, the interests of manufacturers will be reduced, so the current water bottles are all untreated, for example, without rubber pads, but sealed with a very cheap groove. Its disadvantage is that bacteria will breed at the interface and there will be water leakage, but no manufacturer will make efforts in this regard, because most of the mineral water sales are now replaced by Master Kong and Nongfu Spring, and the water of small manufacturers even exceeds 65,438+. As for the insider, what do you want? I'll see if there is.