API tube standard:API,ASTM,ASME,ANSI,JIS,DIN,BS,GB,ISO material:API 5L, A53,A106,A333 GR6,Q235,Q345 API tube SSAW (Spiral Submerged-arc ... , Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8 S185, S235, S235JR, S235 G2H, S275 ... stanards.Spherical socket joint: provides the possibility of a rotation 10 degrees at the pipeline without the utilization of any special ...