... : ASTM A106, ASTM A53, ASTM A179, API5L GR.B, X42, X46, 1. Outer Diameter: 21.3-610mm2 ... Standard: ASTM A106, ASTM A53, ASTM A179, API5L GR.B, X42, X46, X52,4. Length: Random Length, Fixed ... API , BS, GB, ASTM,6.Steel grade: GR.A/B, X42, X46, X52, X56, X60, X65, X707.Pipes ... sizes in loose14.Brand: Shinestar15.Loading port: XINGANG CHINA16. Export: Aisa, North America, Europe, South America & others17. ...