لماذا يكون الطوب عالي الألومينا أبيض وأسود؟, قلب أسود, والشقوق الشبكية?
Why High Alumina Brick Black Heart? After years of development, the amount of high alumina products in the furnace market has increased significantly in recent years, and the masonry of important parts of the furnace … إقرأ المزيد
