Isbn: 9787801772916 - 螺纹及其联结 (1 risultati)

paperback. Condizione: New. Language:Chinese.Paperback Pages Number: 311 thread and its links by the metric fastening thread. fastening threads of English and American. transmission thread and pipe thread. etc. of seven chapters. Which. in addition to an overview of the standard technical content of the current thread. but also includes four pipe thread from 2000 to 2002 published national standards and the 2003 release of nine new ordinary thread national standards. as well as being developed American Unified threads (.…