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Water Solubility Non Woven Insole Board
Due to its special manufacturing method, the water-soluble fiberboard midsole is essentially different from the fiberboard midsole. The softening speed of the water-soluble fiberboard midsole is faster and the hardness is harder than that of the ordinary fiberboard midsole. The water-soluble fiberboard is a permeable fiber midsole in function, so its use is also special
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