从能源、环境双双告急到美国次贷危机对国内市场的冲击;从中央提出可持续发展战略到《汽车产业振兴规划》的出台,节能减排、新能源、自主品牌、自主创新技术成为发展我国汽车及零部件的必然选择。一时间市场上出现各式各样的节能减排产品,然而两片不起眼的活塞环所产生的效果、创造的价值却让那 From the emergency of both energy and environment to the impact of the subprime mortgage crisis on the domestic market from the central government; from the introduction of the strategy of sustainable development by the central government to the promulgation of the “plan for the rejuvenation of the automobile industry”, energy-saving and emission reduction, new energy sources, independent brands and independent innovation technologies have become The inevitable choice of cars and spare parts. A variety of energy-saving emission reduction products appear on the market for a time, but two humble piston rings produced by the effect, the value created by that