Barbed hlau feem ntau yog electro-galvanized, thiab tus nqi ntawm zinc thov yog pom tseeb txawv. Tus nqi ntawm zinc siv rau kub-dip galvanizing yog li 50 grams, thiab qhov txias-galvanizing yog li 15 grams. Cov nyhuv anti-xeb yog zoo dua li cov hlau barbed zoo tib yam.

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