Definition(s)
Casting
(1) An object at or near finished shape obtained by solidification of a substance in a mold.
(2) Pouring molten metal into a mold to produce an object of desired shape.
Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global Standards
Source: API SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. Global Standards