... We specialize in producing this Line Post Insulator widely used on distribution line ,net work, transmission line and other power line . The insulator can be mounted rigidly ... vertical or horizontal mounting. Cantilever strength can be 5KN, 10KN, 12.5KN, 16KN. Main type: type: 57-1, 57-2, 57 ... -3, 57-4, 57-5, 57-11, 57-12, 57-13, 57-14, 57-15, 57-21, 57-22 ...