River Gravel Product Line
River gravel is a natural stone, which is due to the impact of flash floods, water handling process extrusion, friction and the formation of Its chemical composition is silicon dioxide, followed by a small amount of iron oxide and small amounts of manganese,copper, aluminum, magnesium and other elements and compounds.River pebbles are widely used in public buildings, villas, gardens, construction, road and railway construction, parks rockery, bonsai filling material, garden art and other high-level superstructure. It also provided for water purification, sewage treatment, electricity,garden and other engineering quality materials as ceramics, precision casting, paper,abrasion, chemicals, silicon, defense, raw and auxiliary materials.
River Gravel Product Line
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