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The type of ball screen
One, the type of ball screen1. Watermelon rind LED spherical screen:The earliest ball screen in the market, commonly known as the watermelon rind spherical screen, is composed of wa…
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Several characteristics of LED ball screen
1. The emergence of LED spherical screens is a product that has emerged in response to one of the needs of people, that is, the pursuit of new and strange things. In the early years…
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