A new type of reinforcing agent of natural rubber was made by racking, caulking and surfacing activating disposal waste coal gangue. 廢棄煤矸石磨碎，焙燒和表面活性處理后，可用做天然橡膠的補強填充劑。
Single-pipe filling rising film condensation and crystal desalination is a developed process to treat waste sulphuric acid. 單管填料升膜濃縮結晶脫鹽法是一種治理廢酸液的新工藝。
Take solf-graphite to make the board and press it into cricoid filling by pushing down. 用柔性石墨制成板材，通過(guò)模壓制成環(huán)狀填料。
