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The tension of the insulation winding tube refers to the tensioning force of the fibers during the winding process of the insulating tube, the uniformity of the tension of each bundle of fibers and th...
2022-06-23
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Phenolic resin board is a kind of phenolic resin made of high-quality white wood thread paper and cotton lint paper as reinforcement, and phenolic resin made by reacting high-purity, fully synthetic p...
2022-07-06
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