Oriental GongJian group co., LTD. Is a national waterproof anti-corrosion insulation project specialized contracting grade enterprises, fire control facilities, mechanical and electrical installation and architectural decoration project specialized contracting grade, environmental protection project specialized contracting grade 3 and power engineering, construction engineering, metallurgy, petrochemical engineering construction general contracting level enterprise, is electric power construction enterprise to serie a, the chemical anti-corrosion construction qualification certificate, the ministry of water resources hydraulic metal structure anticor...[More]