原帖由 <I>不会游泳的鱼</I> 于 2007-4-19 13:10 发表 <A href="http://pumpvipcom/redirectphp?goto=findpost&pid=20913&ptid=5245" target=_blank><IMG onmousewheel="return imgzoom(this);" onmouseover="if(thiswidth>screenwidth*07) {thisresized=true; thiswidth=screenwidth*07; thisstylecursor='hand'; thisalt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!thisresized) {return true;} else {windowopen('http://pumpvipcom/images/common/backgif');}" alt="" src="http://pumpvipcom/images/common/backgif" onload="if(thiswidth>screenwidth*07) {thisresized=true; thiswidth=screenwidth*07; thisalt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0></A> 我现在采用的就是双壳泵,内壳及副叶轮,减压盖均是Cr26材料。我想从工艺上不知道没有好的办法?