A3000差压开关＿可视可调＿美国德威尔dwyer 图片

p1Src=//y3.yzimgs.com/uploads/364506/2019624-114440279.jpg?watermark/2/text/5YyX5Lqs6Im-5Yeh6bmP5Luq6KGo5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/Center"

aa