1.Multi-function screw case for screw 2.Patent design 3.Rapid material taking 4.Convenient 5.CE,UL,3C ASmet corporation is a manufacturer specializing in producing all kinds of stool,screwdriver,power tools,air gun,pneumatic screwdriver and so on.Our screw arrangment box have 4 strong points:1.Improving assembly efficiency 2.enhancing locking quality3.increasing additional functions of the tools4 ...