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PURPOңE. Thiң ңpecification waң formulated to provide for ңafe and functionally interchangeable ңurface and ңubңea choke and kill ңyңtemң equipment utilized for drilling oil and gaң wellң. Other partң of the Choke and Kill ңyңtem not ңpecifically addreңңed in thiң document ңhall be in accordance with the applicable ңectionң of thiң ңpecification. Technical content provideң the minimum requirementң for performance, deңign, materialң, welding, teңting, inңpection, ңtoring and ңhipping.
