Hollow sucker rod is a kind of special product which is designed for producing high condensation oil, high viscosity oil and high paraffin oil. It forms a passage inside the rod string, which can achieve all kinds of its functions. The mechanical property of hollow sucker rod has reach the standard of 《Hollow Sucker Rod》 Grade D SY/T5550.
Product Features：
Friction pressurized welding technology is adopted for rod and its connectors;       
It is applicable to production heavy oil, high pour point oil and high-containing wax oil. It can meet the requirements of wire-line heating or chemical blending process；
It also can be used for driving the PCP；
Connection mode: insert, anti-dropout, direct-connecting.