对夹式电动软密封蝶阀 D971X 上海希伦流体科技有限公司

p1Src=//y2.yzimgs.com/uploads_old/315330/2009072205103554_old.jpg&p2Src=//y2.yzimgs.com/uploads_old/315330/2009072205103554_old_1.jpg