We are the only manufacturer in China that is still producing glass thermos liners for insulated lunch boxes.Glass material insulation thermos bottle liner is more environmentally friendly and safer than stainless steel liner, and will not decompose harmful substances.The company supports customizing various types of glass liners.It can provide three kinds of environmental protection grades of medium and high temperature, which meet the import standards of any country in the world.

website： http://www.keysterthermal.com/