… became a major concern, particularly in the largest cities. Cummins had combined its global expertise with solutions developed in China for the China market. But the introduction of … became a major concern, particularly in the largest cities. Cummins had combined its global expertise with solutions developed in China for the China market. But the introduction of … became a major concern, particularly in the largest cities. Cummins had combined its global expertise with solutions developed in China for the China market. But the introduction of …