我公司从2003年开始对地铁铝合金部件的开发与研究,所承揽的产品主要是地铁和机车上的铝合金焊接部件,其中包括车体底架、侧墙、顶盖及内装等部件产品,尤其是端部底架是整个车体中重要的受力部件,其要求焊缝的质量等级高,主要采用5XXX系列铝镁 Since 2003, our company has started to research and develop the aluminum alloy parts of the subway. The products we undertake are mainly aluminum alloy welded parts on the subway and locomotives, including the car body chassis, side walls, roof and interior parts, In particular, the end chassis is an important force components throughout the body, which requires high quality welds, the main use of 5XXX series of aluminum magnesium