product manual:

   A hollow sucker rod used for the exploitation of heavy oil and high pour point oil in the oil field is composed of a threaded joint, a sealing device and a rod body. The hollow sucker rod is formed by friction welding and heat treatment with seamless steel pipes and hollow joints. The male thread of the sucker rod is formed by roll forming, and the threaded joint is designed with a pushing surface to make it work reliably. The hollow sucker rod has two structures, which is greatly convenient for on-site use. Due to the use of hollow sucker rods with different structures and different inner diameters, it can be used for lower heating cables, as well as for injection of hot oil and steam, etc. It is a tool for the exploitation of heavy oil and high pour-point oil in oil fields.