/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724152449884988.pdf JB／T 4730-2RT

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724152542444244.pdf JB／T 4730-3UT

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724152668506850.pdf JB／T 4730-4MT

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724152785478547.pdf JB／T 4730-5PT

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724152811931193.pdf GB／T 5777-1996 無縫鋼管超聲波探傷檢驗(yàn)方法

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724152848994899.pdf GB／T 7233-87 鑄鋼件超聲探傷及質(zhì)量評級標(biāo)準(zhǔn)

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724153190039003.pdf GB／T 11345-89 鋼焊縫手工超聲波探傷

/nzcms_nzweb/nzcms_up/attached/file/20150724/20150724153227222722.pdf  JB／T 8467-1996 鍛鋼件超聲波探傷方法