محجر دار السلام
محجر رمال; دراسة جدوى محجر رمال السيليكا. The project is a station for washing and separating silica sands. The project washes and separates silica sands that takes a part in many industries such as glass, optical glass and solar panels as these sands contains a high rate of (SiO2 ) more than 99%.