نام‌آوران زمین و معدن (2) – پورسینا

Below pdf consists of 4 posters (NORSOK, API and ISO) which includes over 300 standards, focusing on some of the more prominent documents that cover fixed offshore platforms, drilling operations, floating production systems, and subsea completion equipment. offshore oil and …

For the vast majority of human history, only a few metals, including iron, copper, tin, and lead, were in common uses. These metals of antiquity are those that are typically found in relatively high concentrations of one-half weight percent or …