制造光学玻璃的原料是什么呢 上海卷柔新技术有限责任公司

p1Src=//y2.yzimgs.com/uploads/538971/20191030-151225105.jpg?watermark/2/text/5LiK5rW35Y235p-U5paw5oqA5pyv5pyJ6ZmQ6LSj5Lu75YWs5Y-4/font/5a6L5L2T/fontsize/700/fill/I0E3QTlBOA==/gravity/SouthEast