1. O le fa'amoemoega lautele o paipa u'amea e le fa'aogaina o lo'o ta'avale mai le uamea fa'apipi'i masani, uamea fa'apipi'i maualalo po'o uamea fa'ameamea. Mo se faʻataʻitaʻiga, o paipa e leai ni mea e faia i le uʻamea maualalo e pei o le Numera 10 ma le Numera 20 e masani ona faʻaaogaina e fai ma paipa felauaiga mo le ausa, koale kesi, kesi faʻafefe, kasa masani, oloa suauʻu eseese ma isi kasa poʻo vai; u'amea kaponi feololo e pei o le 45 ma le 40Cr O paipa e leai ni mea e gaosia e masani ona fa'aoga e gaosia ai vaega eseese o masini ma mea fa'apipi'i paipa.

2. O paipa uʻamea e leai ni mea mo faʻamoemoega lautele o loʻo tuʻuina atu foi e tusa ai ma vailaʻau vailaʻau ma mea faʻainisinia, ma e tusa ai ma suʻega hydraulic. O paipa u'amea lamolemole o lo'o i ai le mamafa o le sua e tatau ona pasia le su'ega o le mamafa o le hydraulic.

3. Fa'apitoa-fa'amoemoega paipa fa'aoga e fa'aoga i totonu o fala, su'esu'ega fa'afanua, bearings, acid resistance, ma isi. E pei ole suau'u geological vili paipa.API 5CTJ55, K55, N80, L80, P110, Etc, ta'e paipa ma paipa paipa mo alamanuia petrochemical.

Fausia paipa u'amea lamolemolee masani ona faʻaaogaina mo fausaga lautele ma fausaga faʻainisinia. O mea fa'atusa (va'aiga): sila carbon No. 20, Nu. 45 sila; uamea uamea Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, ma isi.

O paipa u'amea e leai ni mea mo le felauaiga o vai e masani ona faʻaaogaina mo le felauaiga o paipa vai i inisinia ma mea tetele. O mea e fai ma sui (vaega) e 20, Q345, ma isi.

Paipa u'amea lamolemole mo le mamafa ma le feololopusae masani ona faʻaaogaina mo paipa felauaiga vai maualalo ma feololo i totonu o fale gaosi oloa ma pusa fale. O mea fa'atusa e 10 ma 20 sila.

Paipa u'amea lamolemole moboilers maualuga-omigae masani ona faʻaaogaina mo faʻauluuluga o felauaiga o le suavai ma le maualuga o le vevela ma paipa i totonu o fale eletise ma faʻaupuga faaniukilia. O mea e fai ma sui o 20G, 12Cr1MoVG, 15CrMoG, ma isi.

Paipa u'amea lamolemole mofetilaisa maualugao meafaigaluega e masani ona faʻaaogaina e felauaiga ai le maualuga o le vevela ma le maualuga o le mamafa o paipa vai i luga o meafaigaluega faʻamaʻi. O meafaitino sui e 20, 16Mn,12CrMo, 12Cr2Mo, ma isi.

O paipa u'amea lamolemole mo le ta'e o le suau'u e masani lava ona fa'aogaina i fa'afu, fa'aliliu vevela ma paipa fe'avea'i vai i la'au fa'ameamea. O ana mea fa'atusa e 15mog, 15CrMoG, 12crmog, ma isi.

O paipa u'amea lamolemole mo pusa kasa e masani lava ona fa'aaogaina e fai ai kesi eseese ma fa'ainu kasa hydraulic. O ana mea fa'atusa e 37Mn, 34Mn2V, 35CrMo, ma isi.

E fa'aaogaina paipa u'amea vevela vevela mo mea faʻapipiʻi, lea e masani ona faʻaaogaina e fai ai lagolago hydraulic, cylinders ma koluma i totonu o koale, faʻapea foʻi ma isi faʻauʻu ma koluma. O ana mea faʻatusa e 20, 45, 27SiMn, ma isi.

O paipa u'amea fa'ato'a fa'aoga ma'a'alili po'o fa'a'a'ai malulu e masani ona fa'aogaina mo fausaga fa'ainisinia ma mea e fa'apipi'i ai kaponi, e mana'omia ai le sa'o maualuga ma le fa'ai'uga lelei. O mea fa'atusa e aofia ai le 20, 45 sila, ma isi.

O paipa u'amea fa'amama malūlū ma paipa u'amea fa'apitoa e masani ona fa'aaogaina e fai ai vaega fa'avae ma vaega eseese. E faia i latou i le maualuga o le carbon structural steel and low-alloy structural steel.

O le sa'o o totonu o le lautele o totonu o paipa u'amea e le'i fa'aogaina mo fa'ato'aga vai ma pneumatic o lo'o fa'aaogaina e fai ai paipa u'amea fa'aalili pe fa'alili ma malulu ma sa'o totonu o totonu mo fa'aui'o fa'au'u ma pneumatic. O ana mea fa'atusa e 20, 45 sila, ma isi.