GB/T 7778-2017/XG2-2020
Refrigerant Numbering Method and Safety Classification No. 2 Amendment
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Std.
GB/T 7778-2017/XG2-2020
Standard No.
GB/T 7778-2017/XG2-2020
Language
Chinese
Published By
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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