... tires, cross country ability; Drill choose changan CHANA TRUCK 8X6 special purpose vehicle chassis, transfer case, main drive system, transmission, ... rope feed mechanism are installed in a special purpose vehicle chassis,Compact structure, walking and drilling share a engine, ... Kelly bar (mm) 108x108X8000 Assistant pipe (mm) Φ89X10X6050 Chassis Engine Model YC6A260-33YC Rated power (KW) 191 Drive form ...