... ) Thickness: 1 - 150mm 3) Manufacturing standards: ASTM/ASME Features:1) O.D seamless pipes (nominal to 48")2) Wall thickness up ... use in conveying gas , water and oil in both the oil and natural gas industries.:A25 ,A, B ,X42 ,X46 ,X52 ,X56 ,X60 ... ,X65 ,X70 and X80 Seamless Pipes and Tubes (Big O.D. and Heavy ...