What Is Sb2 Gravel?
What Is Sb2 Gravel? A classified aggregate, typically crushed stone and / or concrete crushed with sand and gravel. Used as a base or granular filler. Is sb2 good for driveway? Great for tough work such as laying foundations and new driveways. SB 2 Gravel -Deriving from granite rocks, SB 2 gravel is lighter in