... for food, have passed the green food inspection.4.Use Scope : suitable to drinking ,double abiabatic ,share ... certificate standard: SGS,ISO9001,FDA,LFGBProduct Features: 1.Use the borosilicate glass as material, clear, environment-friendly, ... resistance to the acid, alkali chemical substance. 4.Easy for cleaning, don’t absorb the tea flavor.5 ... product Transparent Double Wall Glass Cup with handle