少妇做爰免费视频网站裸体艺术_一级毛片在线观看免费_中文字幕一区二区精品_年轻的朋友在线免费观看_中文在线观看免费网站_国产免费网址

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: 91成人精品| 大陆国语对白国产av片 | 无码成人片一区二区三区 | 国产区在线视频 | 麻豆国产成人AV在线播放欲色 | 性一交一无一伦一精一品 | 67194成l人在线观看线路无码 | 亚洲美女精品区人人人人 | 亚洲第一极品精品无码 | 爱情岛亚洲AV永久入口首页 | 欧美第十页 | 99久久影视 | 99国内精品久久久久 | 日韩操穴 | 嘿咻嘿咻免费区在线观看 | 男人j放进女人j免费视频无遮挡 | 亚洲人成在线免费观看 | 亚洲成在人线在线播放无码 | 最新大地资源网在线观看免费 | 少妇一级淫片中文字幕 | 中文字幕一线产区和二线 | 涩涩网站在线观看 | 成人九色 | 噜噜视频 | 欧美日韩一区 | 挺进丰满老师屁股白浆视频 | 国产乱子伦农村叉叉叉 | 毛片久久久久久久 | 91丨porny丨最新 | 麻豆蜜桃AV蜜臀AV色欲AV | 日本三极 | 美女18禁永久免费观看网站 | 日韩一区二区福利 | 国产精品精品自在线拍互動交流 | 日韩精品人妻无码久久影院 | av在线一区二区三区四区 | 黄色免费看看 | 伊人久久综合无码中文字幕 | 女的被弄到高潮娇喘喷水视频 | 一本大道久久a久久综合婷婷 | 97就去干|