熟妇人妻一区二区三区四区,久久ER99热精品一区二区,真实的国产乱XXXX在线,性XXXX18精品A片一区二区


ZH

EN

JP

ES

RU

DE

??? ?? ??

?? 67??? ??? ?? ??? ??? ??? ??.

?? ???? ??? ?? ??? ??? ??? ??? ????: ???, ???, ??? ????, ?? ?? ??? ? ??, ?? ? ??, ??? ??, ?? ??, ????, ??? ??, ?? ??, ??????, ?? ??.


US-FCR, ??? ?? ??

American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), ??? ?? ??

SCC, ??? ?? ??

工業和信息化部, ??? ?? ??

Canadian Standards Association (CSA), ??? ?? ??

American National Standards Institute (ANSI), ??? ?? ??

CZ-CSN, ??? ?? ??

Professional Standard - Light Industry, ??? ?? ??

Group Standards of the People's Republic of China, ??? ?? ??

Professional Standard - Medicine, ??? ?? ??

British Standards Institution (BSI), ??? ?? ??

Association Francaise de Normalisation, ??? ?? ??

International Electrotechnical Commission (IEC), ??? ?? ??

ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc., ??? ?? ??

Spanish Association for Standardization (UNE), ??? ?? ??

Professional Standard - Electricity, ??? ?? ??

GSO, ??? ?? ??

IN-BIS, ??? ?? ??

VDE - VDE Verlag GmbH@ Berlin@ Germany, ??? ?? ??

  • VDE 0721-12-2018 ?? ?? ? ??? ??? ?? ?? ?? - ?? 12: ??? ?? ??? ?? ?? ?? ??(IEC 60519-12:2016), ??? ?? EN IEC 60519-12:2018

Canadian Standards Association/American National Standards , ??? ?? ??

Japanese Industrial Standards Committee (JISC), ??? ?? ??

AT-ON, ??? ?? ??

U.S. Air-Conditioning, Heating, and Refrigeration Institute (US-AHRI), ??? ?? ??

German Institute for Standardization, ??? ?? ??

Professional Standard - Railway, ??? ?? ??

國家市場監督管理總局、中國國家標準化管理委員會, ??? ?? ??





?2007-2024 ??? ??