退火爐施工
依不同的尺寸，更換退火爐-斷熱磚、加熱棒...等設備
斷熱材老舊會有脆化的可能，定時整理爐子，不僅僅會讓保溫效能變高，也因保溫性能高，可以省下加熱的時間與花費的電費
The old material will be brittle, the timing of finishing the stove, not only will make the insulation effect becomes high, but also because of high insulation properties, you can save the heating time and the cost of electricity
這是一座隧道式退火爐，長約3米，爐口部分毀損較嚴重
