Yunnan Power Grid Diqing Power Supply Bureau 220kV Weixi Substation

Yunnan Power Grid Diqing Power Supply Bureau 220kV Weixi Substation

Huzhong Power Grid Company, Yaoa 500kV substation

Huzhong Power Grid Company, Yaoa 500kV substation

State Grid Qinghai Electric Power Company Material Quality Inspection Center

State Grid Qinghai Electric Power Company Material Quality Inspection Center

Southern Power Grid 500kV Funing Converter Station

Southern Power Grid 500kV Funing Converter Station

Guangdong Power Grid Dongguan Power Supply Bureau Testing Institute

Guangdong Power Grid Dongguan Power Supply Bureau Testing Institute

State Grid Corporation of China Ultra-High Voltage AC Experimental Base

State Grid Corporation of China Ultra-High Voltage AC Experimental Base

CGN

CGN

Northwest Electric Power Construction Engineering Co., Ltd.

Northwest Electric Power Construction Engineering Co., Ltd.

Mawei Base, Fujian Provincial Product Quality Inspection Research Institute

Mawei Base, Fujian Provincial Product Quality Inspection Research Institute

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