How to choose double wall SS vaccum tumbler

The double wall SS vaccum tumbler will be strict in the requirements of the material and the performance of the product. The thickness and the steel content of the stainless steel should be higher. If these do not meet the requirements, it will directly affect the vacuum effect of the double wall SS vaccum tumbler.

1, look at the inner bladder and the outer bile surface polished evenly, whether there are bumps and scratches.

2, look at whether the mouth welds are smooth and consistent, which is related to the comfort of a drink.

3, look at the quality of plastic parts and internal seal is tight.

We can also supply the high quality plastic bottle, SS outer plastic inner mug etc. If you need, welcome to contact us.