气动单夹式刀型闸阀 PZ643 上海希伦流体科技有限公司

p1Src=//y1.yzimgs.com/uploads_old/315330/2009072203450312_old.jpg&p2Src=//y1.yzimgs.com/uploads_old/315330/2009072203450312_old_1.jpg