螺旋钻机型号30003500450055007000100001500020000挖掘机t34.54.578101320大扭矩N.m2900364345355667717097891571919206工作压力bar240240240240240240240240工作流量l/min27-4540-7550-9550-9560-13560-15070-150100-180钻杆长度mm12001200120015001500175017501750钻孔直径mm100-600100-750100-900150-750150-900150-900150-1200150-1200