DDZ (MG) Type Drill Pipe Elevators 1. Conform to API SPEC 8C/8A 2. Cast alloy heated steel 3. 18 taper shoulder API Standard DDZ (MG) Type Drill Pipe Elevator1. Brief IntroductionDDZ (T) drill pipe elevators, of which the dimension of the center of the two ears are 560mm and 600mm, are conventional center latch elevators for handling taper shoulder drill pipe with the Top Drive Systems in oil and ...