男人又大又硬又粗视频_麻豆国内精品欧美在线_九九艹视频免费观看_亚洲主播欧美日韩_日韩制服丝袜高清有码在线_可以看的黄色毛片网站_男生女生差差差app下载安装大全免费图片_日本高清www无色夜在_国产丝袜欧美中午另类_波多野结衣15p超碰

The efficient and intelligent complete set includes a bolter miner, roof bolter conveyor unit, bridge conveyor, mobile belt tail, intelligent excavation control system, high-efficiency dust removal device, etc.

Through organic integration of new technology, the traditional stepwise implementation of excavation, support, and transportation has been upgraded to parallel continuous operation, simultaneous support of multi-row and multi-arm bolts, efficient dust removal, and intelligent remote control.

The system is suitable for a coal roadway with medium-stable and below the roof, tunnel slope≤12 °, rectangular tunnel cross-section, width ≥5m, and height≥2m condition.