document.write("<div class='udPage'><img src='/image/title.gif' width='8' height='9' />&nbsp;&nbsp;<b>上一篇：</b><a href='/productdetail.asp?product_id=186' class='blue'>单圈RS422信号38mm外径）</a></div><div class='udPage'><img src='/image/title.gif' width='8' height='9' />&nbsp;&nbsp;<b>下一篇：</b><a href='/productdetail.asp?product_id=184' class='blue'>单圈-0~20mARS485信号---（60mm外径）</a></div>")