1.Specification:SSAW steel pipe line pipe 2.Size: from 219" ... wellsAPE SPEC 5LA, B, X42APISeamles Steel Tubesand Pipes forHigh Pressure BoilerGB5310-199520G, 20MnG, 25MnG, 15MoG, 20MoG, 12Cr1MoVG ... A192 ASTM SA179,SA192,BS3059Seamless Steel Tubes for high pressure --Chemical fertilizer equipmentGB6479-8610, 20G, Q345, Q390 ... Specification: API 5L GR.B SSAW steel pipe line pipe ,2.Size: from 219" to 2420 ...