11. The auto industry is Sinter 's biggest customer. 12. Sinter and hydrothermally altered rocks are found farther down.13. The sinter product is then charged with coke into an electric retort furnace. 14. Then, put the grinding wheels into sintering furnaces to sinter without press. 15. Including those operations, Sinter had estimated revenue of $ 373 million last year. 16. The Dutch brought Sinter Klaas with them to New York in the 17th century. 17. Calcareous sinter is also called tufa, calcareous tufa, or calc-tufa. 18. The rigid sinter plate filters have an extremely stable structure and can be recycled. 19. The average useful life of a sinter plate filter element can exceed 10 years. 20. Sinter plate PE filter elements are environmentally compatible.