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北京通美IPO:经过两年半时间仍“卡”在注册环节 多家同行业公司正 ...
图片来源:上交所官网截图 北京通美2022年披露的招股书(注册稿)显示,其主要从事磷化铟衬底、砷化镓衬底、锗衬底、PBN(热解氮化硼)材料及其他高纯材料的研发、生产和销售。根据咨询机构Yole统计,2020年北京通美磷化铟衬底产品市场占有率位居全球第二 ...
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