Busway, Bus Duct, Busbar manufacturer / supplier in China, offering Waterproof and Fireproof Low-Voltage INA 1600A /5p Cast-in Busway, Waterproof and Fireproof Low-Voltage INA 2500A /5p Cast-in Busway, Waterproof and Fireproof Low-Voltage INA 1000A /5p Cast-in Busway and so on.