composite suspension insulators are high quality, light weight, unbreakable, high bending strength ... insulating material for the internal insulation3. High performance4. High temperature silicon sulfide hydrocarbon for the external insulation5. Fine anti-pollution, ... 160035630-1600200801250625FGCW-66/630-160066630-16003251471250625FGCW-110/630-1600110630-16005502301250625 composite polymer insulator