Yueqing City ZIYONG electrical CO.,LTD is specialized in manufacture Insulation Piercing Connecting (IPC).Our factory owns the most advanced technology. We have the ability to research and design IPC by ourselves. We absorbed the advanced experience from the foreign most advanced IPC and combine Chinese environment, According to the GB13140.4-1998, GB/T2317.3-2000 and DL/T765.3-2004,we manufacture the "JMA" series IPC. For exporting, it reach the standard of NFC33020,NFC33004 and NFC33003 .