What is a stainless steel vacuum flask？

Product Description

Stainless Steel Hot&Cold Thermos Vacuum Flask 500ml With Free Bag

Buy Vacuum Flask Stainless Steel 1L Online

Sanford Stainless Steel Vaccum Flask 1.9 Litre

304 Stainless Steel Coffee Vacuum Flask Supplier/Manufacturer

Uniware 2407 High Quality Stainless Steel Vacuum Flask

316 Stainless Steel Thermos Flask

Vacuum flask - Wikipedia

316 Stainless Steel Thermos Flask

304 Stainless Steel Coffee Vacuum Flask Supplier/Manufacturer

MasterClass - Durable Food Flasks

Vacuum flask - Wikipedia

Function of stainless steel thermos flask - Knowledge - Guangzhou

Cacuum Insulated flask, abdle to keep liquids hot or cold for up to 6 hours Light and convenitent to carry Wide mouth opening accommodated ice cubes

Uniware 2407 High Quality Stainless Steel Vacuum Flask Coffee Bottle/Thermos (Silver)

MasterClass Stainless Steel 1 Litre Vacuum Flask – CookServeEnjoy