研制用于球磨机栅格板的低合金耐磨钢，它的韧性好，硬度和耐磨性较高。
A kind of low-alloyed wear resistant cast steel used for exit grill plates of ball mill is developed. It has good toughness, higher hardness and wear resistance.
长长的沿街部分设置了双层立面，分别是混凝土墙体和木质栅格遮板。
The long street-facing facade of the administration block has a double facade made from a grid of concrete and a wooden latticed screen.
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