Cart:
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 44089-2024 |
Information technology - General technical requirements for full-duplex voice interaction system {译} 信息技术-全双工语音交互系统通用技术要求 |
China National Standards duplex |
 English PDF |
| GB/T 21832.3-2024 |
Austenitic-ferritic duplex stainless steel welded steel pipes - Part 3: Pipes for oil and gas transportation {译} 奥氏体-铁素体型双相不锈钢焊接钢管-第3部分：油气输送用管 |
China National Standards duplex |
English PDF |
| GB/T 21833.3-2024 |
Austenitic-ferritic duplex stainless steel seamless steel pipes - Part 3: Pipes for oil and gas transportation {译} 奥氏体-铁素体型双相不锈钢无缝钢管-第3部分：油气输送用管 |
China National Standards duplex |
English PDF |
| GB/T 43186.2-2023 |
Qualified Surface Acoustic Wave (SAW) and Bulk Acoustic Wave (BAW) duplexers Part 2: Instructions for Use {译} 有质量评定的声表面波（SAW）和体声波（BAW）双工器 第2部分：使用指南 |
China National Standards duplex |
English PDF |
| GB/T 43186.1-2023 |
Qualified surface acoustic wave (SAW) and bulk acoustic wave (BAW) duplexers Part 1: General specifications {译} 有质量评定的声表面波（SAW）和体声波（BAW）双工器 第1部分 ：总规范 |
China National Standards duplex |
English PDF |
| GB/T 41754-2023 |
duplex stainless steel plate for nuclear power plant {译} 核电站用双相不锈钢钢板 |
China National Standards duplex |
English PDF |
| GB/T 42709.7-2023 |
Semiconductor devices Microelectromechanical devices Part 7: MEMS bulk acoustic wave filters and duplexers for radio frequency control and selection {译} 半导体器件 微电子机械器件 第7部分：用于射频控制和选择的MEMS体声波滤波器和双工器 |
China National Standards duplex |
English PDF |
| GB/T 39077-2020 |
Test methods for detecting detrimental phases in lean duplex austenitic-ferritic stainless steels 经济型奥氏体-铁素体双相不锈钢中有害相的检测方法 |
China National Standards duplex |
English PDF |
| GB/T 39033-2020 |
Austenitic-ferritic duplex stainless steel wire rods 奥氏体-铁素体型双相不锈钢盘条 |
China National Standards duplex |
English PDF |
| GB/T 21833.2-2020 |
Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 2: Pipes for fluid service 奥氏体-铁素体型双相不锈钢无缝钢管 第2部分：流体输送用管 |
China National Standards duplex |
English PDF |
| GB/T 21833.1-2020 |
Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 1: Tubes for heat exchanger 奥氏体-铁素体型双相不锈钢无缝钢管 第1部分：热交换器用管 |
China National Standards duplex |
English PDF |
| GB/T 4334-2020 |
Corrosion of metals and alloys－Test methods for intergranular corrosion of austenitic and ferritic-austenitic (duplex) stainless steels 金属和合金的腐蚀 奥氏体及铁素体-奥氏体（双相）不锈钢晶间腐蚀试验方法 |
China National Standards duplex |
English PDF |
| GB/T 38481-2020 |
Determination of ultralow-frequency mutations for microorganisms—duplex sequencing 微生物超低频突变测定 双重测序法 |
China National Standards duplex |
English PDF |
| GB/T 23901.5-2019 |
Non-destructive testing—Image quality of radiographs—Part 5: Determination of the image unsharpness and basic spatial resolution value using duplex wire-type image quality indicators 无损检测 射线照相检测图像质量 第5部分：双丝型像质计图像不清晰度的测定 |
China National Standards duplex |
English PDF |
| GB/T 21832.1-2018 |
Welded austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 1:Tubes for heat exchanger 奥氏体-铁素体型双相不锈钢焊接钢管 第1部分：热交换器用管 |
China National Standards duplex |
English PDF |
| GB/T 21832.2-2018 |
Welded austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 2:Pipes for fluid transport 奥氏体-铁素体型双相不锈钢焊接钢管 第2部分：流体输送用管 |
China National Standards duplex |
English PDF |
| GB/T 35806-2018 |
Animal influenza detection—Protocol of duplex real-time RT-PCR for influenza virus subtypes H7 and N9 动物流感检测 H7N9亚型流感病毒双重荧光RT-PCR检测方法 |
China National Standards duplex |
English PDF |
| GB/T 35900.3-2018 |
Animal influenza detection—Part 3: Method of duplex real-time RT-PCR for the detection of H1 and H3 subtype influenza virus 动物流感检测 第3部分：H1和H3亚型流感病毒核酸双重荧光RT-PCR检测方法 |
China National Standards duplex |
English PDF |
| GB/T 33240-2016 |
Zinc-aluminum alloy-epoxy duplex coated steel bars for the reinforcement of concrete 钢筋混凝土用镀锌铝合金-环氧树脂复合涂层钢筋 |
China National Standards duplex |
English PDF |
| GB/T 31303-2014 |
Austenitic-Ferritic duplex stainless steel bars 奥氏体-铁素体型双相不锈钢棒 |
China National Standards duplex |
English PDF |
| GB/T 14999.6-2010 |
Test methods for characterizing duplex grain sizes and primary carbides distribution of superalloy forgings 锻制高温合金双重晶粒组织和一次碳化物分布测定方法 |
China National Standards duplex |
English PDF |
| GB/T 11600-2009 |
Use on public data networks of data terminal equipment(DTE) which is designed for interfacing to asynchronous duplex V-series MODEMS 与异步双工V系列调制解调器接口的数据终端设备（DTE）在公用数据网上的用法 |
China National Standards duplex |
English PDF |
| GB/T 24177-2009 |
Standard test methods for characterizing duplex grain sizes 双重晶粒度表征与测定方法 |
China National Standards duplex |
English PDF |
| GB/T 23901.5-2009 |
Non-destructive testing - Image quality of radiographs - Part 5: Image quality indicators (duplex wire type) - Determination of image unsharpness value 无损检测 射线照相底片像质 第5部分：双线型像质计 图像不清晰度的测定 |
China National Standards duplex |
English PDF |
| GB/T 21833-2008 |
Austenitic - Ferritic (duplex) grade stainless steel seamless tubes and pipes 奥氏体 铁素体型双相不锈钢无缝钢管 |
China National Standards duplex |
English PDF |
| GB/T 21832-2008 |
Austenitic - Ferritic (duplex) grade stainless steel welded tubes and pipes 奥氏体 铁素体型双相不锈钢焊接钢管 |
China National Standards duplex |
English PDF |
| GB/T 15491-2008 |
Requirements and measurement methods of electrical performance for duplexers used in the mobile services 移动通信双工器电性能要求及测量方法 |
China National Standards duplex |
English PDF |
| GB/T 9541-1988 |
2400 bits per second duplex modem using the echo cancellation technique standardized for use on the general switched telephone network and on point-to-point 2 wire leased telephone-type-circuits 在普通电话交换网和点对点二线租用电话型电路上使用标准化的回波抵消技术的2400比特/ 秒双工调制解调器 |
China National Standards duplex |
English PDF |
| GB/T 7621-1987 |
1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephonecircuits 在电话自动交换网和点对点二线租用电话型电路上使用的标准化的1200比特/秒双工调制解调器 |
China National Standards duplex |
English PDF |
| GB/T 7620-1987 |
300 bits per second duplex modem standardized for use in the general switched telephone network 在电话自动交换网上使用的标准化300比特/秒全双工调制解调器 |
China National Standards duplex |
English PDF |
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