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<p class="MsoNormal" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;" align="left"><span lang="EN-US" style="font-size:9pt;font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;"><span style="font-family:'Times New Roman';">π</span></span><span style="font-size:9pt;font-family:宋体;mso-ascii-font-family:ˎ̥;mso-hansi-font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;">型梁又名</span><span lang="EN-US" style="font-size:9pt;font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;"><span style="font-family:'Times New Roman';">π</span></span><span style="font-size:9pt;font-family:宋体;mso-ascii-font-family:ˎ̥;mso-hansi-font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;">型长梁，</span><span lang="EN-US" style="font-size:9pt;font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;"><span style="font-family:'Times New Roman';">π</span></span><span style="font-size:9pt;font-family:宋体;mso-ascii-font-family:ˎ̥;mso-hansi-font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;">型钢梁，矿用花梁，金属顶梁，</span><span lang="EN-US" style="font-size:9pt;font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;"><span style="font-family:'Times New Roman';">DFB</span></span><span style="font-size:9pt;font-family:宋体;mso-ascii-font-family:ˎ̥;mso-hansi-font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;">金属顶梁等。</span><span lang="EN-US" style="font-size:9pt;font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;"><span style="font-family:'Times New Roman';">π</span></span><span style="font-size:9pt;font-family:宋体;mso-ascii-font-family:ˎ̥;mso-hansi-font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;">型梁主要是用于煤矿坑道（巷道）顶板支护，与单体支柱配合组成金属支架起到顶梁的支护作用。</span><span lang="EN-US" style="font-size:9pt;font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;"><span style="font-family:'Times New Roman';">π</span></span><span style="font-size:9pt;font-family:宋体;mso-ascii-font-family:ˎ̥;mso-hansi-font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;">型梁是用两根</span><span lang="EN-US" style="font-size:9pt;font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;"><span style="font-family:'Times New Roman';">π</span></span><span style="font-size:9pt;font-family:宋体;mso-ascii-font-family:ˎ̥;mso-hansi-font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;">型钢经过热处理对焊而成，是巷道临时支护中最常用到的顶梁。</span><span lang="EN-US" style="font-size:9pt;font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;"><span style="font-family:'Times New Roman';">π</span></span><span style="font-size:9pt;font-family:宋体;mso-ascii-font-family:ˎ̥;mso-hansi-font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;">型长梁主要作用于煤矿水平及缓倾斜回采工作面及机头或其他较大控顶区使用，它能长跨度悬臂式支护控顶区顶板，实现工作面有较大的无支柱支护的工作空间，为改善劳动条件和采用新型采煤机械及可弯曲运输机出纳改造了有利条件。</span><span lang="EN-US" style="font-size:9pt;font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;"><span style="font-family:'Times New Roman';">π</span></span><span style="font-size:9pt;font-family:宋体;mso-ascii-font-family:ˎ̥;mso-hansi-font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;">型梁可根据客户需求定作，产品均经过火加热调质处理，完全符合国家技术标准。</span><span lang="EN-US" style="font-size:9pt;font-family:ˎ̥;mso-font-kerning:0pt;mso-bidi-font-family:宋体;"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></span></p>
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