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News Bitumen roll material applyed on concrete may cause concrete destruction and metal fitting corrosion

Bitumen roll material applyed on concrete may cause concrete destruction and metal fitting corrosion

Bitumen roll material applyed on concrete may cause concrete destruction and metal fitting corrosion-1 Bitumen roll material applyed on concrete may cause concrete destruction and metal fitting corrosion-2 Bitumen roll material applyed on concrete may cause concrete destruction and metal fitting corrosion-3 Bitumen roll material applyed on concrete may cause concrete destruction and metal fitting corrosion-4