E tatau ona made o u'amea u'amea po'o u'amea lapotopoto mausalī e ala i fa'a'au, ona fa'a'ave'aveina lea, ta'ai malulu po'o toso malulu. O paipa u'amea kaponi e taua tele i totonu o le fale gaosi paipa u'amea a Saina. O mea autu e masani lava Q235, 20 #, 35 #, 45 #, 16Mn. O tulaga aupito sili ona taua o le faʻatinoina o oloa e aofia ai tulaga faʻale-malo, tulaga Amerika, tulaga Iapani, ma isi. Sei o tatou tilotilo i le aoga o paipa uamea carbon.

Fa'aoga o paipa uamea kaponi:

1. Paipa mo inisinia masini. E pei o paipa fausaga vaalele, paipa afi afa o taavale, paipa felauaiga, paipa lapopoa mo taavale, paipa vai malulu, paipa faatafafa faatafafa ma faagaau faatafafa mo locomotives faatoaga, paipa transformer ma paipa taʻavale, ma isi.
2. vili paipa mo suauu suau'u si'osi'omaga fa'afanua. E pei o: suauu vili paipa, suauu vili paipa (kelly ma hexagonal vili paipa), vili jacks, suauu paipa, suauu e le susu casings ma sooga tie eseese, geological siosiomaga vili paipa (paipa autu, casings e le susu, toaga vili vili, jacks vili, pa'u ma fa'amau fa'amau, ma isi).
3. Pipa vaila'au. E pei o: paipa ta'e suauu, paipa mo exchangers vevela ma pipelines o masini kemikolo ma meafaigaluega, uamea stainless paipa acid-tetete, ea-conditions paipa mo fertilizers organic ma paipa mo le felauaiga mea laau laau, ma isi.
4. Faila mo paipa. E pei o: vai, kesi paipa, seamless paipa mo compressed ea paipa, suauu paipa, paipa mo suauu ma kesi laina autu. Paipa ta'ita'i mo vai fa'ato'aga fa'ato'aga ma paipa mo mea fa'asusu vai, ma isi.
5. Paipa mo masini fa'amama. E pei o paipa vai vai ma paipa ausa tumu faʻaaogaina i ogaumu faʻavevela lautele, paipa faʻavevela, paipa asu lapopoa, paipa taʻavale laiti, paipa piliki faʻaofuofu ma faʻaauau pea le vevela maualuga o paipa uʻamea faʻaogaina i totonu o ogaumu faʻavevela eletise.
6. Puleaina e isi matagaluega. E pei o: paipa mo meafaigaluega (tubes mo kasa liquefied cylinders ma mea lautele), paipa mo meafaifaaili ma mita, paipa mo mata'imata, tui tui ma paipa mo masini faafomai, ma isi.