... .6L/1.9L 4)12pcs/ctn stainless steel thermos coffee mug1 100% recyclable, including caps and ... warm and cold in four seasons.6 each thermos coffee mug must be tested by worker ... OEM and ODM orders are welcome.stainless steel thermos coffee mugItem NO.YZ1900Sbrandhaolinet weight12.48KGgross wetght15. ... hours≥60°C, 24 hours≥45°Cpls see thermos coffee mug basic structure below, color can spray ...