PVC管道型挡板式水流量开关图片

p1Src=//y2.yzimgs.com/uploads/533755/2018713-122552693.jpg?watermark/2/text/5LiK5rW36ZmM5ZCM6Ieq5Yqo5YyW5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/700/fill/I0E3QTlBOA==/gravity/SouthEast"