1. Fa'agasologa Fa'agasologa:
Ona o paipa u'amea 'eseese faiga gaosiga, ua vaevaeina i latou vevela-taai (extrusion) seamless ma malulu toso (loloa) Seamless lua.O paipa e tosoina malūlū e vaevaeina i paipa lapotopoto ma paipa fa'apena.
2. 15CrMo fa'auiga fa'aaumea Va'aiga Va'aiga:
a.ta'avale (extrusion seamless): ro und tube perforation → fa'avevela → tolu-roll ta'avale, ta'avale po'o le extrusion → tu'u'ese → sizing (po'o fa'aitiitiga) → fa'alili → fa'aputu pili → fa'asa'o → su'ega hydrostatic (po'o su'ega) → fa'ailoga → teuina.e.paipa u'amea fa'afefete (ta'avale) malūlū: fa'a'a'a'a'a fa'a'a'a'a'ai → fa'avevela → fa'alili → pikiina → fa'asu'u fa'auluulu (kopa) → fa'aulu fa'asolosolo malulu (ta'avale) → togafitiga vevela → fa'asa'o sa'o pili paipa → su'ega hydrostatic (su'ega) → fa'ailoga → teuina.
15CrMo u'amea paipa o se tasi ituaiga o paipa uʻamea seamless, ma o lona faatinoga e sili atu le maualuga nai lo le averesi o paipa uamea seamless, ona o le uamea o loʻo i ai Cr sili atu i totonu.E mafai ona maua le maualuga o le vevela, ma e sili atu le pala nai lo isi paipa faʻaogaina, o lea e sili atu le lautele o le paipa faʻafefe i totonu o le suauu, vailaʻau, eletise eletise, pusa ma isi pisinisi.Tulaga Faatauva · E mafai ona matou tuʻuina atu paipa faʻapitoa faʻapitoa e tusa ai ma talosaga a tagata faʻatau.· O i matou foi o se gaosiga, ina ia mafai ona matou tuʻuina atu oloa e tusa ai ma ou manaʻoga vave.· O la matou kamupani o loʻo i ai le malosi faʻapitoa faʻapitoa ma masini gaosiga faʻapitoa ma faʻamaopoopo meafaigaluega suʻega ma metotia.