目前,全国55家自行车厂的年总生产能力已达3000万辆以上,自行车的200余种零件中,除车胎、把套、尾灯等零件外,均用钢材制造。全国自行车钢材消耗平均每辆30 At present, the total annual production capacity of 55 bicycle factories across the country has reached more than 30 million. Among the more than 200 kinds of bicycles, all parts of bicycles are made of steel with the exception of tires, handle sets and taillights. National bicycle steel consumption average 30 yuan per car