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• SCHEDULE 1 <br />DRILLING BOP SYSTEMS -CLASS 1 (CABLE TOOL) <br />FOR WELLS WITHOUT 1st CONTROL STRING SET <br />Full Opening Drill <br />Through Valve 4000 kPa <br />OR <br />50mm <br />Throughout <br />SOmm <br />Throughout <br />Poge 2 <br />HYDRAULIC CONTROL SYSTEM <br />(FOR BL1ND RAM OR ANNULAR) <br />