And frame , handlebar of some bicycles made in some countries are made of aluminium seamless tubes, its mudguard is made of aluminium sheets, its rim is made of fabricated aluminium profiles.

• 有些国家生产的部分自行车的车架、车把是用铝合金无缝管制作的，挡泥板是用铝合金带材制成，而车圈是用铝合金型材加工而成的。