Q: Dab tsi yog qhov tseem ceeb ntawm ERW yeeb nkab zeb? A: Cov khoom tseem ceeb ntawm ERW yeeb nkab zeb muaj xws li lub uncoiler, kev sib sau seem, vuam seem, sizing seem, straightening seem, thiab txiav-tawm saw. Txhua feem ua lub luag haujlwm tseem ceeb hauv kev tsim cov yeeb nkab. Ntawm lawv, formin ...
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