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： 欧美日韩国产亚洲综合卡18 | 韩国午夜影院 | 国产亚洲亚洲国产一二区 | 日本黄色片在线免费观看 | 中文1区2区3区 | 免费无码又爽又刺激A片软件妖精 | 糖心logo官方网站在线观看 | 成年人高清视频 | 秘书双乳上下晃动呻吟 | 久色视频在线 | 再灬再灬再灬深一点舒服视频 | 国产精品欧美在线视频 | 草草影院ccyycom浮力影院 | 青青操五月天 | 性色a∨人人爽网站 | 无翼乌18禁全肉肉无遮挡彩色 | 国产毛毛片一区二区三区四区 | 黄色快播网站 | 真实人与人性恔配视频 | 99久久夜色精品国产网站 | 日韩大片一区二区 | 欧美巨大黑人极品精男 | 久久久久国产精品免费a片记大片 | 久久不射视频 | 97无码免费人妻超级碰碰碰 | 99人人澡 | 日本一二三区在线视频 | 19欧美男男1069| 99精品无人区乱码1区2区3区 | 千古风流人物第三季免费观看 | 久草本在线| 国产三级a三级三级大全 | 国内精品人妻无码久久久影院 | 国产亚洲欧美精品一区 | 成人三级小说 | 69堂成人精品免费视频 | 久久久毛片 | 欧美日韩国产精品一区二区三区 | bbixx在线观看 | 少妇性色午夜淫片aaa播放5 | 日本视频网址 |