Hollow Sucker Rod

①Hollow sucker rod can be divided into upsetting type and welding type.

②Standard：SY/T5550

③Grade：C  D  H

④Size：32,34,36,38,40,42 (mm)

⑤Length：Hollow Sucker Rod：7000,7500,8000,8500,9000,9500,10000 (mm)

                                   Pony rod：800,1000,1500,2000,3000 (mm)