1.Taageeraha ardayda waxaa loo isticmaalaa in lagu hagaajiyo dhererka tuubbada dhererka buuxa ama xargaha xargaha, waxaa sidoo kale loo isticmaalaa in lagu hagaajiyo qoto dheer ee aaladaha hoos u soo dejinta.
2.Standard: API 5CT
3.Size: 2 3/8 ″, 2 7/8 ″, 3 1/2 ″, 4 1/2 ″ iyo kuwa kale
4.Grade: J55 / K55 / N80 / L80 / P110
5. Dhererka: 2FT / 3FT / 4FT / 5FT / 6FT / 8FT / 10FT / 12FT