
Coarse aggregates crushed stone or gravel having clean hard strong durable uncoated particles free from injurious amount of soft alkali or organic matter elongated or laminated 15 limestone soft stones or adobe stones are not allowed to be used 2 Water free from oils acids or vegetable matters sea or blackish water is prohibited sand and gravel price in davao city Sand Gravel Mindanao Sandstone Production Line And Price The Mines and Geosciences Bureau XI observed a significant increase in sand and gravel production value over the last three years in Davao 2016 the MGB XI recorded P887370820 sand