成人亚洲A片V一区二区三区蜜月,日韩欧美猛交XXXXX无码,无码人妻丰满熟妇区蜜臀涩图,国内精品人妻无码久久久影院蜜桃,亚洲AV成人无码网站大全唐人

ZD132 full hydraulic tunneling drilling rig stoutness structure, small dimension, low noise, high efficiency. Use independent production DZYG38B type hydraulic rock drill working, this low and small rock drill can drill near the wall and roof, angle about 2°, can make a smallest overexcavation by the level lane or tunnel tunneling to form a smooth walls and roof, greatly improve the working speed. This drill rig is suitable for metal mining, water and electricity, etc all kinds of the mine roadway excavation and anchoring working. ZD132 use diesel engine four wheel drive, articulated chassis steering, low power consumption, short turning radius, suitable for medium and small cross section tunneling work. This drill rig with accurate positioning、swift and convenient BH1 drilling arm, exactness horizontal pendulum, high stability, slant straight propeller can turn 360 ° to eliminate blind holes within the scope of work, This drill arm can be 360 ° anchoring operation in vertical direction. Whole vehicle hydraulic system adopts the imported hydraulic components, low failure rate.