metal distribution boxes and plastic distribution boxes with different sizes ,and single ,three phase We introduce ourselves now, we are Huangshan ... CIRCUIT BREAKER , (MCB,MCCB,RCD,RCBO,RCCB AC CONTACTOR ,CAPACITORS and DISTRIBUTION BOXES . Our factory areas have 20,000 square meters at ... have our good R&D team ,so we can design and produce the products as per your requirement . Metal distribution box