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据资料统计,在全国高速公路上发生的交通事故中有40%以上是爆胎引起的,爆胎多为胎壁厚、散热慢、不适宜高速行驶的普通斜交胎。子午线胎胎壁薄、胎面耐磨、胎体生热慢,是高速公路上高速行车的必然选择。 国产双钱牌载重汽车用子午线胎的速度等级分别为L、M、N3个等级,其最高限速分别为120、130、140km/h;回力牌轿车子午线胎的速度等级分别为S、T、H3个等级,其最高限速分别为180、190、210km/h。
According to statistics, more than 40% of the traffic accidents occurred on the expressways in the country are caused by a flat tire. Most of the punctured tires are normal bias tires with thick sidewalls, slow heat dissipation and high speed. Radial tire wall thin, wear-resistant tread, carcasses slow heat, high-speed highway is the inevitable choice. The speed grades of domestic double-walled truck radial tires are respectively L, M, N3 grades, the maximum speed limits are 120,130,140km / h respectively; the speed grades of the radial tires of the Huili brand are S, T, H3 levels, the maximum speed limit is 180,190,210 km / h.