Construction For Scl Categories: Architectural Repair Of 110Kv Tien Son Substation, Architectural Repair Of 110Kv Binh Dinh Substation, Repair Of Fire Protection System Of 110Kv Que Vo 3 Station, Architectural Repair Of Fences, Concrete Road Curbs, Fire Protection Hydrants Of 110Kv Yen Phong 4 Substation