保护措施预防撞击和贯穿是用碳纤维和聚芳族胺，和透过高密度扩大的聚苯乙烯制成的垫塞。
Protection against impacts and perforation is ensured by a shell in carbon fibers and aramid, and by an expanded polystyrene inner padding with high density.
限位部的形状与相应的突出部的形 状相对应。本发明的防磨结构组件具有多块耐磨刚玉陶瓷块、金属衬板、防震垫、内侧 金属螺柱、金属螺帽和刚玉陶瓷塞。
The wear resistant corundum ceramic block includes integral main body, protuberant part, limiting part and connecting holes, and the limiting part has shape corresponding to the protuberant part.
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