1. The D Grade Sucker Rod is study the domestic and overseas advance manufacturing technique and comply with API SPEC 11B specification for Sucker Rods> to produce. From the process of defect detection, select high quality of alloy steel and then process to straightening, forging, fault detection, quenching, flash back, impeller blasting, assembly, packing, painting and the final product will be stored into the warehouse. Using fluorescent magnetic fault detection and imported Eddy current inspection instrument to inspect sucker rod head and the rod body, therefore, the quality of the D Grade Sucker Rod is being assured. The performance of the D Grade Sucker Rod is excellent, price competitive, safe, and will lower the oil extraction cost significantly.

2. Specification
Diameter: 5/8in, 3/4in, 7/8in, 1in
Length: 25feet, 30feet