Vacuum Flask
Generally, Vacuum flask is a water-filled container made of ceramic or stainless steel and a vacuum layer. The top has a cover and the seal is tight. The vacuum insulation layer can delay the heat dissipation of the liquid such as water inside to achieve the purpose of heat preservation.
The flask is developed from the thermos bottle. The principle of heat preservation is the same as that of the thermos bottle, but people make the bottle into a cup for convenience. There are many layers inside the mug, and the sandwich is generally vacuum to prevent heat conduction! It is then plated with silver to prevent heat radiation. Some cups have corks on them to prevent heat conduction.
As one of the professional and reliable manufacturers and suppliers in China, our company has been worked in this field for many years that we have strict standards which is able to meet the international requirements. It is capable of providing vacuum flask made in China that you can buy from our factory.
Stainless Steel Vacuum Flask

Stainless Steel Vacuum Flask

500ml capacity with vacuum insulation
Vacuum insulated with copper liner for hot and cold;
Keep hot 10 hours and keep cold 20 hours

Stainless Vacuum Flask

Stainless Vacuum Flask

350ml and 500ml two capacities;
350ml for kids and 500ml for adults;
SS lid with silicone handle attached on body;

Stainless Steel Vacuum Insulated Flask

Stainless Steel Vacuum Insulated Flask

vacuum insulated for keeping hot 20 hours and cold 10 hours;
straight body for large printing area;
500ml and 750ml capacity;

Vacuum Insulated Flask

Vacuum Insulated Flask

18oz, 36oz and 64oz 3 capacities;
Straight body for all kinds of decoration;
PP lid with silicone band decoration;

Double Wall Vacuum Flask

Double Wall Vacuum Flask

18oz, 36oz and 64oz 3 capacities;
PP lid with cap design, cap attached on lid;
PP lid with loop for easy carrying;

Double Wall Stainless Steel Vacuum Flask

Double Wall Stainless Steel Vacuum Flask

500ml and 750ml capacities;
Classic Swell design;
Rainbow plating finish and spot paint is available;