内径螺纹，外径三点固定47MMLED环... 上海玟测光电科技有限公司

p1Src=//y1.yzimgs.com/uploads/4374/20161116-173314998.jpg?watermark/2/text/5LiK5rW3546f5rWL5YWJ55S156eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/650/fill/I0E3QTlBOA==/gravity/South"

aa