<p>骑一次,就要紧一次.上过油漆防滑也不行了.</p><p>有什么使它耐用点的办法?</p><p><img src="attachments/dvbbs/2006-11/2006112812405126436.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-11/2006112812405126436.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/>黑圈内螺丝</p>