Sewerage, Recycling of non-metal waste and scrap [from old new papers, rejected glass articles and used non-metall ic items etc. Collection of non-metal waste and scrap for recycling is included in 51498.], Recycling of non-metal waste and scrap [from old new papers, rejected glass articles and used non-metall ic items etc. Collection of non-metal waste and scrap for recycling is included in 51498.] (37200)