对夹蝶式双瓣止回阀 H76X
上海希伦流体科技有限公司
p1Src=//y3.yzimgs.com/uploads_old/315330/2009081203003971_old.jpg&p2Src=//y3.yzimgs.com/uploads_old/315330/2009081203003971_old_1.jpg