A片粗大的内捧猛烈进出AVV_国产精品成人精品久久久_狼群社区在线看片_熟女精品视频一区二区三区_任你躁一区二区久久99_97精品一区二区三区

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： 精品国产大片久久久久久久久 | 91豆花精品一区 | 国产伦精品一区二区三区视频我 | 蜜桃视频免费网站 | 国产日产久久高清欧美 | 久久免费看黄A级毛片 | 亚洲精品久久久久久久久久 | aaaaaaaaa在线观看 | 国产麻豆aⅴ尤物网站尤物 日韩一级生活片 | 浮生影院大全免费观看中文版 | а天堂中文最新版在线 | 国产无遮挡裸体免费视频 | 日本xxxx色视频在线观看免费不卡 | 男插女高潮一区二区 | 日本一区二区三区精品 | 久亚洲一线产区二线产区三线区 | 人妻AV中文系列 | 国产精品视频偷伦精品视频 | 精品视频在线观看一区 | 日韩一级片大全 | 91chinese老女人 | 大胆GOGO无码不卡播放 | 国产一区二区在线免费 | 藏精阁成人免费观看在线视频 | 久草国产精品视频 | 国产一级爱c视频 | 性xxxfreexxxx性欧美 | 成年人黄色大片大全 | 成人羞羞视频国 | 欧美久久久久 | 国产国语一级在线播放视频 | 狠狠躁日日躁夜夜躁东南亚 | 亚洲日韩在线中文字幕第一页 | 久久WW精品W免费人成 | 日韩av免费网址 | 99香蕉国产精品偷在线观看 | 亚洲国产一区二区a毛片 | 久久亚洲影视 | 动漫3d成人h无码国漫 | 日本无遮挡边做边爱边摸 | 国产精品视频一区视频二区 |