... clean 3) airtight 4) on time delivery Set of 4 Rectangular Glass Food Container Size: 450ml, 1000ml, 2000ml, 3200ml Packing: 1 set/ white ... to corrosion. 4. Higher hygienic performance. 5. Can be used in oven, microwave, Dishwasher, freezer, refrigerator etc.6. Heat resistance: ... fissure on the product.8. Sharp rise temperature tolerance: hold in freezer at -16-_18 degree for 30min.,then with high ...