insulator ,porcelain insulator ,pin insulator,disc insulator 1. for high voltage use 2.material : porcelain 3.class : ANSI insulator , porcelain insulator ,disc insulator1) cap and pin type insulator for high voltage use.2) material: porcelain&steel3) 6pcs/ctn ANSI standard .4) item no : 52-1 52-2 52-3 52-4 52-5 52-6 52-8 52-9 52-10 disc insulator