1.disc suspension insulator 2.Material : Procelain 3.Size: 52-3 We are manufacture for all kinds of overhead line fitting ,such as ... link fitting ,eye bolt ,eye nut ,socket clevis ,hook ,strain clamp ,stay rod ,Procelain Insulator ,such as ... ,we will supply best quality and price for you . Disc Insulator 52-3 / procelain insulator/ceramic insulator