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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 22683-2021 |
Methods used to designate model of controls for household and similar use 家用和类似用途控制器产品型号编制方法 |
China National Standards designate |
 English PDF |
| GB/T 9125.1-2020 |
Fasteners for steel pipe flange joints—Part 1:PN designated 钢制管法兰连接用紧固件 第1部分：PN系列 |
China National Standards designate |
English PDF |
| GB/T 9125.2-2020 |
Fasteners for steel pipe flange joints—Part 2：Class designated 钢制管法兰连接用紧固件 第2部分：Class系列 |
China National Standards designate |
English PDF |
| GB/T 39245.2-2020 |
Grooved metal gaskets with covering layers for pipe flanges—Part 2：Class designated 管法兰用金属齿形组合垫片 第2部分：Class 系列 |
China National Standards designate |
English PDF |
| GB/T 39245.1-2020 |
Grooved metal gaskets with covering layers for pipe flanges—Part 1：PN designated 管法兰用金属齿形组合垫片 第1部分：PN 系列 |
China National Standards designate |
English PDF |
| GB/T 19066.2-2020 |
Composite wave-serrated metal gaskets for pipe flanges一Part 2:Class designated 管法兰用金属波齿复合垫片 第2部分：Class系列 |
China National Standards designate |
English PDF |
| GB/T 19066.1-2020 |
Composite wave-serrated metal gaskets for pipe flanges一Part 1: PN designated 管法兰用金属波齿复合垫片 第1部分：PN系列 |
China National Standards designate |
English PDF |
| GB/T 9124.2-2019 |
Steel pipe flanges—Part 2:Class designated 钢制管法兰 第2部分：Class 系列 |
China National Standards designate |
English PDF |
| GB/T 9124.1-2019 |
Steel pipe flanges—Part 1:PN designated 钢制管法兰 第1部分：PN 系列 |
China National Standards designate |
English PDF |
| GB/T 30090-2013 |
Standard guide for temperature electromotive force(emf) tables for non-letter designated thermocouple combinations 无字母代号热电偶分度表 |
China National Standards designate |
English PDF |
| GB/T 22683-2008 |
Methods used to designate model of controls for household and similar use 家用和类似用途控制器 产品型号编制方法 |
China National Standards designate |
English PDF |
| GB/Z 19511-2004 |
Industrial，scientific and medical equipment(ISM)--Guidelines for emission levels within the bands designated by the ITU 工业、科学和医疗设备(ISM) 国际电信联盟(ITU)指定频段内的辐射电平指南 |
China National Standards designate |
English PDF |
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