Anchor drill pipe material selection B19, B22 hollow hexagonal manufacturing, this product has a single root and anchor combination joins three cannabis for supporting all kinds of pneumatic and hydraulic bolt rig drilling use, quickly joins a long service life, for any angle of drilling, improve economic efficiency. B19 / B22 air drill is an air drill, a drill pipe used in drilling machine, and the word drill drill equipped with a cross. Different lengths of drill pipe can be customized according to customer requirements. There are 0.5-5 meters, usually with 3 meters. 2. Mine drilling drilling accessories: (1) B19, B22 drill, bolt, coal drill pipe, drill pipe hexagonal hollow bolt grouting, etc. (2) diamond drill bits, carbide drill bits, , PDC drill bits, core bits, air drill, drill connected sets, drill the end (3) bolt tray, air leg, manual cable cutter, manual cable tensioning equipment, tensioning jack, anchor stirrer, anchor Cable blender, bolt tension meter, cable anchor, anchor mining, water filter, oiler, injection valve. (4) Wind shovel series:, C2, C5, C6, C7