奇米四色二区_人妻无码熟妇乱又视频_豪妇荡乳在线观看_成a人片亚洲日本久久_精品久久久国产精品999_xxx性护士hd另类

The 18 valve industry standards will be implemented as of January 1, 2021

Time：2020-11-06
According to the Announcement of the Ministry of Industry and Information Technology of the People's Republic of China No. 15 in 2020, the Ministry of Industry and Information Technology of the People's Republic of China has approved and...

According to announcement No. 15 of 2020 issued by Ministry of Industry and Information Technology of the People's Republic of China, Ministry of Industry and Information Technology of the People's Republic of China approved and published a batch of industry standards, among which 18 standards centralized by National Technical Committee for Standardization of Valves and National Technical Committee for Standardization of Safety Pressure Relief Devices are hereby published, as shown in the following table:

No
Standard number
Standard name
Under centralized unit
  1
JB/T 13769-2020
Water hammer relief valve
National Technical Committee for Standardization of Safety Relief Devices
  2
JB/T 13768-2020
Solenoid relief valve
National Technical Committee for Standardization of Safety Relief Devices
  3
JB/T 13886-2020
Safety Shutoff Bottom Valve for Hazardous Liquid Storage Tank
National Technical Committee for Valve Standardization
  4
JB/T 13884-2020
Test procedure for opening and closing torque of valves
National Technical Committee for Valve Standardization
  5
JB/T 13888-2020
Lip-type sealing element for cryogenic valves
National Technical Committee for Valve Standardization
  6
JB/T 13879-2020
Non-Nuclear Valves for Nuclear Power
General Technical Specifications
National Technical Committee for Valve Standardization
  7
JB/T 13878-2020
Non-Nuclear Gate Valves for Nuclear Power
technical conditions
National Technical Committee for Valve Standardization
  8
JB/T 13877-2020
Temperature-pressure control valve
National Technical Committee for Valve Standardization
  9
JB/T 13885-2020
For gas pressure regulator
Safety shutoff valve
National Technical Committee for Valve Standardization
 10
JB/T 13882-2020
High Temperature and High Pressure Flat Gate Valve for Power Station
National Technical Committee for Valve Standardization
 11
JB/T 13883-2020
Valve electro-hydraulic actuator
National Technical Committee for Valve Standardization
 12
JB/T 13887-2020
Automatic control return valve
National Technical Committee for Valve Standardization
 13
JB/T 13880-2020
Rubber Flap Check Valve
National Technical Committee for Valve Standardization
 14
JB/T 10529-2020
Ceramic Sealed Valves
technical conditions
National Technical Committee for Valve Standardization
 15
JB/T 13876-2020
Valve components
Valve Stem General Requirements
National Technical Committee for Valve Standardization
 16
JB/T 13875-2020
Solenoid-driven stop valve
National Technical Committee for Valve Standardization
 17
JB/T 7746-2020
Compact forged steel valves
National Technical Committee for Valve Standardization
 18
JB/T 13881-2020
Electric device for marine valve
technical conditions
National Technical Committee for Valve Standardization
主站蜘蛛池模板： av免费在线视 | 中文字幕毛片无码 | 精品成人免费自拍视频 | 男人天堂手机在线观看 | 亚洲国产精品第一页 | 国产边摸边吃奶边做爽网站 | 免费观看av | 哺乳期喷奶水丰满少妇午夜片 | 内射后入在线观看一区 | 国产精品一品二区三区在线看 | 亚洲av无码成人精品区天堂 | 福利在线免费视频 | 黄绝一级毛片 | 国产精品久久久久国产三级传媒 | 在线观看免费人成视频色9 91丝袜护士强制脚交 | 国产精品综合色区在线观看 | 亚洲国产精品久久久久久 | 久久高清国产 | 成人午夜精品无码一区二区三区 | 国产在线一区二区三区 | 天天摸天天搞 | 国产午夜精品av一区二区 | 看全黄大色黄大片美女爽一次 | 99久久夜色精品 | 久久久www | 182tv成人福利视频免费看 | 婷婷开心色四房播播 | 日日草av| 免费的午夜毛片 | 国产男女视频 | 日本japan撒尿video | 国产免费亚洲 | 国产精品国产三级国产aⅴ 狠狠色伊人亚洲综合网 | 8AV国产精爽爽线观看传媒公司 | 91亚州熟女网站 | 亚洲中文字幕精品久久久久久动漫 | 日本久久久久久 | 狠狠躁18三区二区一区视频 | 91精品久久久久久久99 | 99精品国产丝袜在线拍国语 | 日韩一区在线播放 |