... ,51/2, 7, 95/8,103/4,133/8Drill pipe cement head: 27/8,31/2,5,51/2We can ... and product special cement head according to users requirement.Drill pipe Cement HeadSpecification:Single plug casing cement head: 5,51/ ... ,51/2, 7, 95/8,103/4,133/8Drill pipe cement head: 27/8,31/2,5,51/2We can ... are only supplied with two-stage cementing tools.The drill pipe plugs and hollow plugs used in drilling liner cementing ...