China 4130 Steel Sucker Rod Manufacturer Landee Provides 4130 Steel Sucker Rod, API 11B Grade D, Size 5/8 Inch, Length 8 Meters, Black Painting.
China AISI 3130 Sucker Rod Manufacturer Provides AISI 3130 Sucker Rod, API 11B Gr.D, 3/4 Inch, 9.14 Meters, Black Surface, for Oil Pumping Systems.