the impeller, wear plate and agitator are made of abrasive resistant 28% chrome iron (600 brinell, 57 rockwell c).
设备中的叶轮,耐磨板和搅拌器全部采用耐磨的28% 的铬铁制作。
especially the important mineral products can not satisfy the demand, such as the petroleum, rich iron ore, chrome iron ore, copper mine, sylvite, etc.