Since1981, MCR has been serving the refinging industry by removing waste refinery caustics, processing them in its plant in Beijing, and recovering organic and inorganic chemicals which it markets woldwide.

• 我的译文：MCR从1981年起就为炼厂提供清除废碱服务，在其北京的厂子加工收集的废碱，并回收其销售到世界各地的有机和无机化学品。