According to the current production technical conditions and enterprise scale, there are 20 domestic first-class power fittings manufacturers with 1000KV UHV production qualification, as follows (in no particular order):
Shi Lan Electric Power Equipment Co., Ltd., Jiangsu Tiannan Electric Power Equipment Co., Ltd., Hangzhou Jinta Electric Power Equipment Co., Ltd., Yangzhou Shuanghui Electric Power Equipment Factory, Beijing Power Transmission and Transformation Company Line Equipment Factory, Zhejiang Taichang Industrial Co., Ltd., Shanghai Gu Yong Electric Power Equipment Co., Ltd., Shanghai Baoxiang Machinery Co., Ltd., Huzhou Tailun Electric Power Equipment Co., Ltd., Siping Line Equipment Factory, Chengdu Electric Power Hardware Factory, Guangzhou Xinyuan Hengye Electric Power Line Equipment Co., Ltd., Jiangdu Siguang Power Line Equipment Co., Ltd., Liaoning Jinxing Power Hardware Technology Co., Ltd., Jiangsu Jiekai Power Line Equipment Co., Ltd., Hunan Jingming Power Line Equipment Co., Ltd., Xi Anchuangyuan Power Hardware Co., Ltd., Nanjing Line Equipment Factory, Shijiazhuang Development Zone Huaneng Electric Co., Ltd., Beijing Palpu Line Equipment Co., Ltd. ..