PGL distribution characteristics of the screen: the open-and closed two, to maintain double-sided. Mixed-use angle steel and steel plate by welding, the surface of the screen on the dashboard for the side, plus interval partition, the top of the frame equipped Bus box, loaded bus shield, welding N, PE contact. According to customer requirements to retrofit the size of the back door or side. Use: for general industrial plants or construction of residential gardens of the power distribution room for lighting and so on.