德国曼内斯曼德马克公司最近研制出一种新型中间罐回转式水口一“Demag steel-tapper系统”。该系统是由新型陶瓷材料(已申请专利)制作的两个垂直排列的圆台组成。这两个圆台相互倒置,大端面相抵,位置在中间罐浇注口与浸入式水口之间,上圆台的小端面与中间罐浇注口相接,下圆台 Mannesmann Demark, Germany, recently developed a new “Demag steel-tapper system” for the swivel nozzle. The system is composed of a new ceramic material (patented) made of two vertically arranged round table composition. The two trunks inverted each other, the large end of the offset, the location between the intermediate tank pouring mouth and submerged nozzle, the small end of the upper circular table and the middle tank pouring mouth phase, the next round table