... JIS ASTM4) Bevel or varnish to be confirmed5) Suitable for high pressure, anti- corrosion (power plant, refinery plantequipment) and long distance ... .B, ASTM A106, ASTM A53 Big Od Seamless Alloy And Carbon Pipes Astm A53a, A53b, A106b, A106c, A179, A210, A192 ...