盖茨圆弧齿同步带912-8YU,920-8Y... 上海赤丰机电设备有限公司

p1Src=//y1.yzimgs.com/uploads_old/465785/2014120517095498_old.jpg&p2Src=//y1.yzimgs.com/uploads_old/465785/2014120517095509_old.jpg&p3Src=//y1.yzimgs.com/uploads_old/465785/2014120517095516_old.jpg"

aa