Галд тэсвэртэй тоосгоны үзүүлэлтүүд юу вэ??
What Are Refractory Bricks? Refractory bricks are called fire brick for short, refractory materials made of refractory clay or other refractory raw materials. Light yellow or brownish, mainly used for smelting furnaces, can withstand 1,580 … Цааш унших