550ml supreme black [business optimization]] 550 ml [silver] one-click lid opening 550ml local gold [cost-effective]] 550ml elegant silver [car optimization]] 350ml supreme black [calm and steady]] 350ml elegant silver [tea water separation]] 450ml elegant silver [high-temperature resistance explosion-proof]] 450ml supreme black [double insulation]] 450ml local gold [one-click lid opening]] 450 ml [silver] one-click lid opening 300 ml silver [ordinary]]

one-click open cover/vehicle-mounted/double-layer thickening/tea water separation