JXF Control box-Gongshun electric co. JXF small distribution box is a widely used device in low-voltage power systems, designed for the distribution and control of electrical energy. Suitable for various buildings, industrial, and commercial settings, it enhances the reliability and safety of power systems. Based in Guangzhou Economic and Technological Development Zone, the company operates a 20,000-square-meter factory equipped with cutting-edge equipment imported from. (JXF indoor/JFF outdoor) enclosure box is designed to be assembled into the distributing box with various control functions according to the type of components, specifications and quantity. The structure is so tight that can be very perfect. lt's made of cold-rolled steel board or stainless alloy. Europack Sacchetti designs and manufactures customized boxes and bags for companies and stores. Box Substation, Cable Branch Box, Switching Station manufacturer / supplier in China, offering 12kv 24kv 33kv Gas Insulated Medium Voltage Switchgear Sf6 Ring Main Unit Rmu, 12kv 24kv 33kv Gas Insulated Switchgear Gis Rmu Sf6 Ring Main Unit, 12kv 24kv 33kv 40.