Weblinks :::
Enhancing Material Master : http://scn.sap.com/docs/DOC-47544
Material master screens and fields : http://scn.sap.com/docs/DOC-52909
http://help.sap.com/saphelp_45b/helpdata/en/64/1a39516e36d1118b3f0060b03ca329/content.htm
Material master screens and fields
原文：http://www.cnblogs.com/jefflu2012/p/4444880.html