Outdoor ring main unit enclosure is totally insulated, made of G R C environmental protection upon request, stainless steel or common steel, with single door or double door, and front, left or right opening doors at the cable incoming and outgoing side. Green, gray or white colors are optional.
Metal box
Box color can be sprayed upon request, usually the color is green. The box is pretreated strictly, then sprayed and baked. The surface paint has long life and performance, and is suitable to different bad environment. The thickness of paint film is 0.15mm.
GRC box 
Based on the advanced GRC (fiberglass enhanced cement) technology, cement, fiberglass and silica sand as main raw material, integral moulding as production technology, no dust pollution during production, environmental protection and labor insurance.