- polished rod
- 2016-09-13 08:13
- 1. Sucker rod for oilfield2. OD: from 5/8 to 1-1/83. Grade: C D K4. Coupling Type: Class T, Class SM5. Standard: API 11B
- API 11B sucker rod and pony rod
- 2016-09-13 08:12
- 1. Sucker rod for oilfield2. OD: from 5/8 to 1-1/83. Grade: C D K4. Coupling Type: Class T, Class SM5. Standard: API 11B
- API 11B sucker rod coupling
- 2016-09-13 08:11
- 1. Sucker rod for oilfield2. OD: from 5/8 to 1-1/83. Grade: C D K4. Coupling Type: Class T, Class SM5. Standard: API 11B