Colored Crushed Stone Appliions

Asphalt wikipediasphalt, also known as bitumen uk b tj m n , us b tj u m n, b a, is a sticky, black, and highly viscous liquid or semisolid form of petroleum may be found in natural deposits or may be a refined product, and is classed as a pitchfore the 20th century, the term asphaltum was also used.

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