The shaft stick and the hanging hooks are formed by bending one steel bar or welding more than one steel bar. The non-metal roller is a ceramicbead roller or a bakelite roller.
上述轴棍与挂钩是一根钢筋弯曲而成或一根以上钢筋焊接而成,其非金属辊子是瓷珠辊子或胶木辊子。
2
Compared to the alumina beads, it has a higher fracture toughness and lower hardness. It is an economic ceramicbead to replace Kaolin bead, silica sand and other natural grinding media.