1.Light and small Wrench,but big Torque 2.Special used to unlaoding the nuts in small s[ace when the truck dosen't spereate Dongfeng series combustion engine G stye connecting rod special wrench.lHigh intensity light metal anti-rust material, light, small volume,,strong,lSpecially suitable for the narrow space before disassemble the motor body.lShorten the maintenance time, improve the ...