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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 25151.1-2010 |
Fabrication and inspection method for high pressure urea equipment - Part 1: Ultrasonic examination on the automatic strip overlay welds of stainless steel 尿素高压设备制造检验方法 第1部分：不锈钢带极自动堆焊层超声波检测 |
China National Standards Method the urea |
 English PDF |
| GB/T 2602-2002 |
Method for the urea determinationof m-cresol content of phenol products 酚类产品中间位甲酚含量的尿素测定方法 |
China National Standards Method the urea |
English PDF |
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