3213 A - Angular contact ball bearings | SKF They can operate at high speeds and are more suitable than deep groove ball bearings for supporting large axial forces in both directions
【铁道行业标准】TB T 3213-2009 高原机车车辆电工电子产品通用技术条件 标准 - 道客巴巴 内容提示: ICS 29.280S 35TB中华人民共和国铁道行业标准TB/T 3213—2009高原机车车辆电工电子产品通用技术条件G eneraltechni calspeci fi cati onof el ectri c and el ectroni cproducts- usedonrol l i ngstock forpl ateau2009—11-11发布2010—05—01实施中华人民共和国铁道部发布
China Southern Airlines 3213 - FlightAware Flight status, tracking, and historical data for China Southern Airlines 3213 (CZ3213 CSN3213) including scheduled, estimated, and actual departure and arrival times