... Grade: Gr. A/B/C, X42-X80, Q235 Standard: ASTM, API, BS, JIS, GB, DIN Brand Name: YF SSAW STEEL PIPE ... A501-98ASTN A519-98JIS G3441-1994JIS G3444-1994Seamless steel tubes and pipes forliquid service GB/T8163-199910, 20, Q295, Q345ASTM A53 ... G3461-1988JIS G3462-1998DIN 17175-1979BS3059Part 21990Seamless Steel Tubesfor low and Medium Pressure Boilers GB3087-199910, 20ASTM A179, ASTM A192ASTM SA179 ...