... insulator, spool / guy insulator, etc. We are also special in porcelain insulators. We are engaged in this field over 20 years ... /Shackle type, Rod Post type, Strain/Guy type, Metal fittings, Porcelain Shells & Bushings, Lighting Arrester, Drop-Out Fuse Cutter (DOFC with ... , R-1, R-2, R-8, etc.5. Porcelain Shell & Bushing Series: 1). Porcelain Shell for ZnO Lighting Arrester2). SF6 Circuit Breaker ...