Thin cast films of Formvar strengthened with the addition of a layer of evaporated carbon on copper grids. The composite films have extra resilience and strength compared with carbon films. ">
Formvar 300目铜/碳3毫米(群25)-涂层网格 - 万博手机版max客户端,万博手机登录网,万博电脑网页版登录
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