factory direct sales microwave heating portable divided lunch box thickened lunch box 304 stainless steel insulated lunch box

single layer [420ml]] single layer [620ml]] double layer [420 + 620ml]] three layers [420+420 + 620ml]] 304 single layer small size [470ml]] 304 single layer large [600ml]] 304 double layer [470ml + 600ml]] 304 three layers [470ml * 2 + 600ml]] 304 layer 4 [470ml * 2 + 600ml * 2]] 410 single layer small size [400ml]] 410 single layer large [580ml]] 410 double layer [400ml + 580ml]] 410 layer 3 [400mi * 2 + 580ml]] 410 layer 4 [400mi * 2 + 580ml * 2]] double layer [13.7 * 16cm]] three layers [13.7 * 23cm]] four layers [24.7*13 * 16cm]]

dark blue gray white brown gray brown creamy-white separate thermal bag