Standard Specification : ASTM A/SA53 GR B, ASTM A/SA106 GR B , ASTM A/SA333 GR.1/GR.6 , ASTM A... ASTM A/SA53 GR B, ASTM A/SA106 GR B , ASTM A/SA333 GR.1/GR.6 , ASTM A/SA671GR.C60/65/70 , ASTM A/SA672GR.C60/65/70 ASTM A/SA691 CM65 / 70 / 75 / 1CR / 5CR / 9CR ASTM / ASME SA 335
