... / ceramic insulator 2. suspension insulator 3. IEC, GB, ANSI, BS, JIS, AS,DIN standard 4. brown or grey Porcelain/ ceramic insulator 56-seriesPin type insulator, post ... of insulator available color of white, gray, blue, brownAccording to IEC, GB, ANSI, BS, JIS, AS,DIN. Customer-oriented. Ceramic insulator/ Porcelain Insulator 56 ...