Ferro Silicon Alloy(Low Silicon) Ferro Silicon Alloy(Low Silicon),Metallic Silicon Price,Ferro Silicon Uses,Low Silicon Product NINGXIA HELANSHAN METALLURGY CO., LTD. , http://www.nxhlsyjferrosilicon.com The 55° dovetail guides on various machine tools have different angles during manufacturing and overhaul. In order to meet the angle values ​​of various 55° dovetail guides in manufacturing and overhaul, Figure 1 shows the 55° automatic adjustment of our design. The angle gauge, in the development of the 55° dovetail guide rail, can reduce the labor intensity of workers and increase the speed. Figure 2 shows the angle gauge automatic adjustment block.