/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724151169026902.pdf  JB／T 4730-2RT

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724151110301030.pdf  JB／T 4730-3UT

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724151260616061.pdf  JB／T 4730-4MT

/nzcms_nzweb/nzcms_up/attached/file/20150724/2015072415120109109.pdf    JB／T 4730-5PT

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724151299049904.pdf  GB／T 5777-1996 无缝钢管超声波探伤检验方法

/nzcms_nzweb/nzcms_up/attached/file/20150724/2015072415120413413.pdf    GB／T 7233-87 铸钢件超声探伤及质量评级标准

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724151233023302.pdf   GB／T 11345-89 钢焊缝手工超声波探伤

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724151223942394.pdf   JB／T 8467-1996 锻钢件超声波探伤方法