ball crusher短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 球磨机,磨球机 Through making mould by ourself, casting, erasing edge of bearing pad and grinding, repair big bearing pad of ball crusher more quickly. The method has more economy benefits. 通过自制胎具,浇注、修边、铲瓦口、研刮油线,对球磨机轴瓦发生的烧蚀快速修复,有较好的经济效益。 chemyq