QB1丝扣快速排气阀 DN25-DN50 图片

p1Src=//y1.yzimgs.com/uploads/520854/2017228-133855261.jpg?watermark/2/text/5rKz5YyX5Yip5Yib6ZiA6Zeo5Yi26YCg5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/SouthEast"