自行车除车胎以外,其余零部件均由自行车行业自行加工,从红轧带板或卷板进厂,要经过材料压延、制管、金切、冲压、油漆、电镀、热处理、焊接和裝配组合等工艺,这些工艺都有其特定的要求,因此,也有其不同的沿革和发展过程。 In addition to bicycle tires, the rest of the spare parts are processed by the bicycle industry itself, from the red-rolled strip or coil into the factory, through the material rolling, pipe, gold cutting, stamping, paint, electroplating, heat treatment, welding and assembly combinations, etc. Processes, these processes have their own specific requirements, so they also have different evolutions and developments.