6具有硬颗粒覆盖层的轴承及其制造方法[美国].US 7229699,2007,06.12,Toth;James R,et a1,Federal-Mogul World Wide.Inc.
7重力和低压铸造金属型用涂料[美国].US 7234507, 2007,06.26,Juhedi;Mahnaz, et al,Cast Centre Pty Ltd.Department of Mining, Minerals and Materials, Engineering; University of Oueensland (澳大利亚).