HG/T 3175-2002.Fabrication and inspection method forHigh pressure urea equipment ultrasonic examination(UT) on the strip overlay welds of stainless steel.HG/T 3175适用于采用脉冲反射法对尿素高压设备不锈钢带极自动堆焊层进行接触法超声波检测和厚度测量。...................
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