/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 無(wú)縫鋼管超聲波探傷檢驗(yàn)方法

/nzcms_nzweb/nzcms_up/attached/file/20150724/2015072415120413413.pdf    GB／T 7233-87 鑄鋼件超聲探傷及質(zhì)量評(píng)級(jí)標(biāo)準(zhǔn)

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724151233023302.pdf   GB／T 11345-89 鋼焊縫手工超聲波探傷

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724151223942394.pdf   JB／T 8467-1996 鍛鋼件超聲波探傷方法