Heat-resistant of the glass bottle is up to 600 Celsius degrees,200 degrees sudden temperature change resistant with 30%+ coefficient of expansion.

• 奶瓶以高级耐热玻璃制成,无接缝,不卡奶垢,易清理,可耐高温600度，耐热急变温度200度，膨胀系数高达30%25。