... hot-dip 3.Application: High Voltage NLD-1Features1.NLD strain clamp(Bolt type)2.Material:Cast-iron&Steel with hot-dip4 ... voltage product, such as lamp holder, socket, plug, light, switch, connector, fuse, insulator, spindle, cable, doorbell, test pen, etc. And most ... obtained ISO9001, CE, VDE certification. Hope to cooperate with you!! Suspension clamp