沧海--一粟
幼苗
共回答了16个问题采纳率:93.8% 举报
To cover up the caving hydraulic supports automatic hydraulic network installation support caving hydraulic support small slab caving hydraulic support shield hydraulic supports caving hydraulic support caving Pai Tau stent support hydraulic support caving hydraulic support low caving hydraulic extension Caving-Powered Support End stent small slab caving hydraulic Shield hydraulic support ahead Support Group stent End stent Caving support hydraulic supports cover hydraulic support stent cover hydraulic support stent cover hydraulic support on support shield Shield-pressure hydraulic support stent-head hydraulic support DS1ZY35 * End-hydraulic support * ZY60 00/25/50 type shield hydraulic support * Powered type caving hydraulic support * Z Z5200/17/35 type of shield support * ZTG7200/20/30 transition type hydraulic support * End-TDZa hydraulic support
1年前
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