Protective band, processing layer forming agent, optical film and image visual display device.

保护带，处理层形成剂，光学膜和图像视觉显示器。

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Involved Industries: Modern Finance such as: Band and Securities; New Service Industry such as Information Service, Agent Organization and Training.

涉及行业：银行业、证券业等现代金融业；信息服务、中介机构和培训等新兴服务业。

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Set in a Chicago recording studio in 1927, it explores the fraught relations among the members of the great blues singer's band and her white producer and agent.

ECONOMIST: August Wilson