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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 15972.20-2021 |
Specifications for optical fibre test methods-Part 20:Measurement methods and test procedures for dimensions- Fibre geometry 光纤试验方法规范 第20部分：尺寸参数的测量方法和试验程序 光纤几何参数 |
China National Standards 20:Measurement |
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