... -508mm (1/8''-20'')× 1.2mm-39mm Standard GB, ASTM, API 5L, API 5CT,DIN, JIS and ... SPEC 5CTJ55, N80APISeamless steel tubes foroil casing andtubing in oil wellsAPE SPEC 5LA, B, X42APISeamles Steel ... and Medium Pressure BoilersGB3087-199910, 20ASTM A179, ASTM A192 ASTM SA179,SA192, BS3059Seamless Steel Tubes for high pressure ... -2St 35.8St 35.420#ASTM A106 Gr.BASTM A53 Gr.BASTM A315 Gr.BASTM A210-A-1St 42St ...