These ovens, essential for melting the glass, not only cost more than NT $ 1 million, they must be kept going all year round. Once the oven is off, it's all over.
融熔玻璃的必要設備﹘﹘坩堝窯（又名八卦窯），不僅耗資新台幣上百萬，而且得終年燃燒不輟，一旦停爐一切就報銷了。