Taw qhia: Galvanized steel los xij tau dhau los ua cov khoom tseem ceeb hauv ntau qhov kev lag luam vim lawv cov khoom tshwj xeeb. Nyob rau hauv no blog, peb yuav delve rau hauv cov yam ntxwv ntawm cov nplooj ntawv galvanized, qhia txog lawv corrosion kuj, tshav kub tsis kam, kub reflectivity, thiab kev lag luam ...
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