Hua
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Astm A106 Gr.B Seamlele putorino mo te wai
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API 5L Seamlel Pipee mo te hau hinu
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API 5L ASMM A106 A333, A335 ranei i nga kowiri waro
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API 5CT, J55, K55, L80, N80 Kohikohi me te ngongo
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AP 5ct Charaone Charaone Chilling Poipe mo nga kaupapa Drill
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Astm A333, Astm A335, Astm A387, Astm A213 / 213m Ko nga putiputi maitai o te kowiri
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Astm A192, Astm A179, Astm A209, Astm A210 Tuuturu Tuuturu
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Ko te huringa hiko o te hiko hiko kowiri tira kowiri tira
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SANS 657-3, en 10305, Din 2391 Putohono Tika Tika / Nges