<P>非常好,</P>泵阀技术论坛http://www.lanbeng-pump.net
<P>我现在遇到了一个问题,就是螺旋离心叶轮会在<SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">水泵额定扬程偏高的情况下,损坏和磨损严重,有知道原因的请告之?</SPAN></P>