0DUWLQ(QJLQHHULQJ?2QH0DUWLQ3ODFH?1HSRQVHW,/  86$ 3K?)[  ?LQIR#PDUWLQHQJFRP?ZZZ PDUWLQHQJFRP 352%/(062/9('? 3$3(5 62/87,21 ,1'8675 <   /2&$ 7,21  352%/(0  62/ 87,21 5(68/ 7 6 Martin® Tracker™ Mining Huaibei Mining Group, Luling Plant, Auhui, China One of the conveyor at the Luling mine of Huaibei Coal Mining Group, carrying coal 50 meters, started

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