VARIABLE BORE RAM SIZE 7-5/8" TO 3-1/2" FOR 18-3/4" 15K T/TL BOP - Triconser
Variable Bore Rams - Black Gold Rental Tools
Variable Bore Rams (VBR) – Most of the rigs prefer to use the VBR instead of the fixed pipe rams because its flexibility to work with various pipe size... | By Drillingformulas.Com
Variable Bore Rams, Inc.
VARIABLE BORE RAM SIZE 5" TO 2-7/8" FOR 18-3/4" 10K/15K T/TL BOP - Triconser
Wholesale variable ram assembly For All Random Access Memory Needs - Alibaba.com