DDZ type off Type Elevators, applied to enhance the 18 ° taper shoulder drill pipe, drilling tools, etc. Elevators in accordance with API Spec 8C/8A <"Drilling and Production Hoisting Equipment" design, manufacture.
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DDZ type off Type Elevators, applied to enhance the 18 ° taper shoulder drill pipe, drilling tools, etc. Elevators in accordance with API Spec 8C/8A <"Drilling and Production Hoisting Equipment" design, manufacture.