غبار السيليكا, المعروف أيضا باسم microsilica, are ultrafine powders collected as a by-product of the production of silicon and ferrosilicon alloys. Silica Fume particles are spherical and very fine, a property that makes them an excellent additive for concrete mixtures. They are widely used in high-rise buildings, refractory materials and other industries.
n n Cities: Skylines on Steam n. Cities: Skylines is a modern take on the classic city simulation.The game introduces new game play elements to realize the thrill and hardships of creating and maintaining a real city whilst expanding on some well established tropes of the city building experience.بيانات مركبة معدة ثقيلة ماركةآليات ثقيلة للبيع ...