Te tirohanga ki nga Puhi Pikiti Pikiti Petroleum Pipes Hanga Putoho Asme Sa106, asme sa179, asme sa192, asme sa210, asme sa213, asme sa335, aha atu Papamahi o Petroleum Pipes Nga Pikiti API 5L PSL1, PSL2 API 5L API 5L Gr.B X42 X52 X60 X65 X70 ETC API 5ct-2018 Te Whakanui me te ngongo API 5CT API 5KET J55, K55, N80, N80Q, etc