Food Grade Stainless Steel Vacuum Flask Wholesale
| Name | vacuum flask | |
| Volume | 350ml | or as client require |
| Material | 304 Stainless Steel | food grade and eco-friendly |
| Color | blue , red , white | Can also accept customize |
| Payment | T/T ,Western Union | |
| Shipping way | FedEx ,DHL , EMS ,TNT | by sea and by air is also welcome |
| Logo | customize color | |
| MOQ | 1pcs if we have stock | 1000 pcs if you need design your own logo |
| others | keep hot and keep cold |
Detail informations for vacuum flask :
Colors you can choose for vacuum flask :
How to select high quality vacuum flask :
1, thermal insulation properties easy identification method:
Pour the boiling water over the clockwise tighten cork or lid mug after 2-3 minutes apart from the body surface by hand touch the cup,
If there is a significant body warm cup phenomenon, indicating that the product has lost its vacuum, can not achieve good insulation effect.
2, sealing performance recognition method:
in the cup, add water, clockwise tighten cork and lid, the cup flat on the table, should anhydrous leakage; lid and cup of screwing should be flexible, there is no gap .
3, the capacity of simple identification method:
the height of the depth of the liner and the shell basically the same (a difference 16-18MM) capacity consistent with the nominal value. Some poor quality mug in the cup add sand, cement blocks to compensate for the lack of weight. Myth: Cup (pot) heavier is not necessarily good.