请教教一下大型电站汽轮机用钢

<p><span style="FONT-FAMILY: 楷体_GB2312; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New="New"  Roman'; mso-hansi-font-family: 'Times New="New"  Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-weight: bold">请问下国内外的汽轮机用钢现状和发展趋势？</span></p>
<p><span style="FONT-FAMILY: 楷体_GB2312; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New="New"  Roman'; mso-hansi-font-family: 'Times New="New"  Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-weight: bold">请各位提供一些可以查阅汽轮机用钢以及其焊接技术的书籍、期刊或者文献。</span></p>
<p><span style="FONT-FAMILY: 楷体_GB2312; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New="New"  Roman'; mso-hansi-font-family: 'Times New="New"  Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-weight: bold">多谢，多谢</span></p>