鞍建二公司在某轧钢工程上应用了一批双胶轮混凝土手推车(图7)。车身用钢管焊成,车轮为普遍的胶轮,轮距60厘米。其容积等于过去的单轮车的1.5倍。目前,不少冶金建筑企业仍沿用铁制单轮手推车。铁轮车的重量大,在木跳板上运行摩阻很 Anshan two companies in a rolling project to apply a number of double rubber wheel concrete trolleys (Figure 7). Body welded steel pipe, the wheel is a common rubber wheel, wheelbase 60 cm. Its volume is equal to 1.5 times that of the previous unicycle. At present, many metallurgical construction enterprises still use iron single-wheeled carts. Iron wheel weight, running on the wooden springboard friction very