A型列车是基于双层铝壳技术和模块化概念并集高质量、内外部多功能于一体的列车车体系统。该车由日立公司制造,双层壳体完全由大块中空挤压铝型材制造,利用了横截面结构柔性的优点形成了式样新颖的外部轮廓。双层壳体也保证了高结构刚性并给予乘客安静的内部环境。铝的箱形截面 A-type train is based on the double-layer aluminum shell technology and modular concept of high-quality, both inside and outside the multi-functional train body system. The car was made by Hitachi, a double-walled case entirely made of large hollow extruded aluminum profiles that took advantage of the flexibility of the cross-section structure to create a novel outer profile. Double shell also ensures high structural rigidity and gives passengers a quiet interior. Aluminum box section