Core of large rollercold upsetting die made of ld steel has more ideal hardness, strength, anti wear capacity and impact toughness.
采用LD钢制造大型滚子冷镦模具的模芯,具有较理想的硬度、强度、耐磨性和冲击韧性。
2
The new type tunnel kiln and roller kiln by adopting cleaned cold gas as fuel can greatly reduce firing energy consumption and improve glaze glossiness and regularity of products.