ASTM A106 Gr.B Seamless steel pipe 1) O.D: 20 ~ 273mm 2) W. ... -20mmLength2m--5.8m/6m/12m and RANDOM LENGTHStandardASTM A53,BS1387-85,GB/T3091-08,DIN2440,JIS-G3444,EN10255Zinc coatingPre galvanized steel ... : tsggbfscatherinesales602 at tsruixiang dom com dom cn ASTM A106 Gr.B Seamless steel pipe