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Calculate drag factor.Materials used for road surfaces differ, and include asphalt, gravel, cement and the presence of ice.Each road material has a drag factor value associated with it, which is used to calculate speed during crashes.Asphalt has a value of 0.90, gravel has a value of 0.80 and ice has a value of 0.
We are a large-scale joint-stock enterprise integrating scientific research, production and sales.Our leading products have crushing equipment, sand making equipment, mobile crusher, etc., Each type of product is with complete specifications. All products have passed ISO9001, CE and GOST international quality system certification.