12月8日，A型地铁车辆在试验线上运行。12月8日，为北京地铁生产的首列轻量化不锈钢A型地铁车辆在南车青岛四方机车车辆股份有限公司竣工下线。该A型地铁车辆在国内首次采用轻量化、无涂装不锈钢车体，不仅具备高的抗腐蚀性，而且运营维护成本低，具有低碳环保、安全可靠、乘坐舒适等特点。2012年3月，南车青岛四方机车车辆股份有限公司与北京地铁总公司签订了25列150辆的A型不锈钢地铁车辆项目。新华社记者 李紫恒 摄     On August 12,Type A metro vehicle in test online operation.On August 12,For the production of Beijing metro first column lightweight stainless steel type A metro vehicle in south car Qingdao sifang locomotive and rolling co., LTD., completion referrals.The type A metro vehicle in China for the first time, using A lightweight/No coating stainless steel body,Not only have high corrosion resistance,And operation maintenance cost is low,A low carbon environmental protection/Safe and reliable/Take comfortable and so on characteristics.In march of 2012,South car Qingdao sifang locomotive and rolling co., LTD. And Beijing subway corporation signed 25 column of about 150 cars to type A metro vehicle stainless steel project.The xinhua news agency LiZiHeng perturbation

    12月8日，A型地铁车辆在试验线上运行。新华社记者 李紫恒 摄     On August 12,Type A metro vehicle in test online operation.The xinhua news agency LiZiHeng perturbation

    12月8日，乘客在试乘A型地铁车辆。新华社记者 李紫恒 摄     On August 12,Passengers in the predestined relationship type A metro vehicle.The xinhua news agency LiZiHeng perturbation

    这是A型地铁车辆内部（12月8日摄）。A型地铁车辆每节车辆比北京现行运营的B型地铁车辆长3米左右，车门也由8对门增加至10对门。新华社记者 李紫恒 摄     This is the type A metro vehicle interior(On December 8 perturbation).Type A metro vehicle vehicles each section than Beijing current operation of type B metro vehicle about 3 meters long,The door from the gate increased to 10 gate.The xinhua news agency LiZiHeng perturbation