New thermos cup lid can not cover what is the problem?
Matters needing attention：1, the increase in the number of use, sealing ring loss (this is a consumable) faster, so it takes one year to replace.3, the lid and the cup body close to infinity, indicating that the seal has been seriously damaged, you need to replace the new thermos cup to drink water.
Reason: if the new thermos cup quality clearance, must satisfy the following 2 conditions, proved quality is no problem.1, I feel very difficult twist: the new insulation Cup because the sealing ring is new caused by feeling is difficult to twist, and seamed and no wear so will cause the feeling seems difficult to twist.2, see the seam, it is because of the elastic stress caused by uneven, from another point of view, on the contrary this is true no new products, because of tight sealing elastic foot, not Water Leakage.
Buy a new insulation cup lid is not because the lid and the cup does not match, no warranty can be replaced free of charge.
