The epoxy resin cast insulated tubular bus project of Ningxia Yinchuan Step-up Substation is provided with production & installation services by Guangdong High Power Technology Co., Ltd. This product is waterproof, fireproof, corrosion-resistant, earthquake resistant, excellent in low-temperature condensation resistance, simple in layout, beautiful and generous! The epoxy resin cast solid insulated tubular bus is a new generation of bus products. It has been introduced from abroad for more than 20 years. With mature technology and excellent performance, it can guarantee zero fault for 30 years!