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3D Printer Filament

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(1) Background: Lining voids and macroscopic water freezing are both prominent issues that threaten driving safety in high-speed railway tunnels. With the continuous expansion of the scale of high-speed rail tunnels in extremely cold areas in China. the issues of lining voids. water accumulation. https://foldlyers.shop/product-category/3d-printer-filament/
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