AS568B标准尺寸O型密封圈 AS568 O-ring 图片

p1Src=//y1.yzimgs.com/uploads/508399/201682-155044233.jpg?watermark/2/text/5LiK5rW35rOb5aGe5py655S16K6-5aSH5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/650/fill/I0E3QTlBOA==/gravity/SouthEast"