Austenite, Pearlite, Martensite – Rev. 1
کانی سیلیکات کلسیم و کربنات کلسیم آبدار در سال ۱۹۵۷میلادی کشف و به افتخار دانشمند ایرانی، ابوریحان بیرونی به نام …
We live in the information age where essentially instantaneous communications e.g. email and text messaging, are a way of life. In business, the ever-present email has to some extent, replaced the formal memorandum as the main medium for transferring information. …
From the time that ASME’s founders, Henry R. Worthington, Alexander Lyman Holley, and John Edson Sweet, gathered in New York City for the first time in 1880 until today, ASME standards have changed over the years to include new construction …