The pipe ram BOP is above the blind ram BOP - YouTube
دیکشنری آنلاین مهندسی نفت - Blind Rams
Investigating the Cause of the Deepwater Horizon Blowout - Interactive Graphic - NYTimes.com
Source API 16A ram BOP parts, pipe rams Blind Rams on m.alibaba.com
GE Oil & Gas Blind Shear Ram Animation - YouTube
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NexusPetro - Blind Ram vs Shear Ram Blind Ram: A thick, heavy steel component of a conventional ram blowout preventer. In a normal pipe ram, the two blocks of steel that meet