... years We specialize in producing this Line Post Insulator widely used on distribution line ,net work, transmission line and other power ... products have passed the ISO9001 Certification.Connected fitting type: tie top conductor binding type and clamp top with vertical or horizontal mounting ... strength can be 5KN, 10KN, 12.5KN, 16KN. Main type: type: 57-1, 57-2, 57-3, 57-4, 57-5, 57-11 ...