1. The tank lids are fired together, but they may experience slight deformation due to varying contraction percentages. This can result in incomplete contact between the lids and the tanks..
2. If the front part of the tank does not remain blank when the tank lid’s rear end aligns with the tank and is centered in the left-right direction, the product will not conform to specifications.
3. During production, the tank lid can remain stable with just one foot pad, which explains why there’s only one foot pad.