Main Product Display Applications: With API standard,Our Pup joint, X-Cross Over & Coupling are an excellent addition to any cementing operation. Casing and tubing pipes are a type of tubular product used in oil and gas drilling and production operations. They are long lengths of pipe,usually Casing is used to line the wellbore and prevent it from collapsing, while tubing is used to convey fluids such as oil or gas from the reservoir to the surface. Size: Casing is typically