小口径高压锅炉管

é???o￡áú?T?ì??1ü3§￡?3éá￠óú?tá?á??t?ê￡?ê?ò??òéú2ú?ò?úê?óúò?ì? μ??T?ì??1ü′óDíéú2ú?óòμ?￡1???×???ó?á?3?êD?-???a?￠??￡???μ?500 óà?????×?￡??óDà?°?éú2ú??á?ì??ééú2ú￡¨20*2?a180*20￡??T?ì??1ü?￡ ???t1üéú2ú??ò?ì??ééú2ú￡¨16*1?a114*20￡?μ????t?T?ì??1ü?￡èè?t?? 1üéú2ú??ò?ì??ééú2ú￡¨127*8---273*60￡?μ??T?ì??1ü?￡?í1ü?ú×é?ééú 2ú￡¨159*6?a1800*90￡?μ??±?êo?1ü?￡ 2??ê￡?10#?￠20#?￠45#?￠16Mn?￠ 27SiMn?￠12CrMo?￠15CrMo?￠40Crμè ?′DD±ê×??a￡? é???o￡áú?T?ì??1ü 3§×???óú???°ó??àμ??-±±??3??a-á?3?￡?ê?ò??ò?÷óa?T?ì1ü2?μ?éì?3 á÷í¨?óòμ￡?3￡?êéú2ú?úê??÷??1???2??êμ?D??ú????1ü?￠D??ú??o?±ú?? 1ü?￠D??ú???T?ì??1ü?￠′ó?ú????1ü?￠o?±ú??1ü′ó?ú??o?±ú??1ü?￠o??e ??1ü?￠′ó?ú??o??e??1ü?￠′?ó???1ü?￠5312′?ó???1ü?￠′?ó?o??e??1ü?￠ ???t??1ü?￠???ü??1ü?￠???ü1aáá??1ü?￠?±?êo?1ü?￠o?±úo?1ü?￠2?Da?? 1ü?￠èè?t?T?ì??1ü?￠à?°??T?ì??1ü?￠D??ú??o?±úo??e??1ü