PVDF-4-70-4-70-10,PVDF-4-35-4-35-10,PVDF-4-55-4-55-10,可变吐出叶片泵 PVDF-4-70-4-70-10,PVDF-4-35-4-35-10,PVDF-4-55-4-55 图片

p1Src=//y1.yzimgs.com/uploads_old/375274/2012080414122566_old.jpg"

aa