标 准 编 号：GB/T 11345-1989 简体中文标题：钢焊缝手工超声波探伤方法和探伤结果分级 繁体中文标题：钢焊缝手工超声波探伤方法和探伤结果分级 English Name：Method for manual ultrasonic testing and classification of testing results for ferritic steel welds...