National Standard of the People's Republic of China Design Code for Industrial Circulating Water Cooling GB/T 50102-2014 Jointly issued by the Ministry of Housing and Urban-Rural Development of the People's Republic of China and the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Works Measurement Standards

National Standard of the People's Republic of China Fire Protection Code for Design of Civil Air Defense Projects GB 50098-2009 Jointly issued by the Ministry of Housing and Urban-Rural Development of the People's Republic of China and the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Measurement Standards

69'216₮

National Standard of the People's Republic of China Specifications for Acceptance and Inspection of Building Fire Extinguisher Configuration GB 50444-2008 Jointly issued by the Ministry of Housing and Urban-Rural Development of the People's Republic of China and the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Building Code

67'040₮

National Standard of the People's Republic of China Design Specification for Printed Circuit Board Factory GB 51127-2015 Jointly issued by the Ministry of Housing and Urban-Rural Development of the People's Republic of China and the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Measurement Standards

68'960₮