Ka wehea ngā paipa rino ki ngā paipa rino tuitui me ngā paipa rino whakapiri (ngā paipa tuitui).

He momo ngongo kore-tui te ngongo pōro. He rite tonu te tikanga hanga ki te paipa kore-tui, engari he whakaritenga pakari mō ngā momo maitai e whakamahia ana mō te hanga paipa maitai. E ai ki te pāmahana whakamahinga, ka taea te wehewehe ki ngā ngongo pōro whānui me ngā ngongo pōro pēhanga-teitei.

1) Ko ngā momo maitai o te maitai hanganga waro kounga teitei ko te 20G, 20MnG me te 25MnG.

2) Ngā momo maitai hanganga koranu 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, me ētahi atu.

Ngā Ngongo Rino Kore-Tuitui mō ngā Poiha Pēhanga Iti me te Waenga (GB3087-2008), Ngā Ngongo Rino Kore-Tuitui mō ngā Poiha Pēhanga Teitei (GB5310-2008), ASME SA-106, ASME SA-213, ASTM A335

Hei tāpiritanga, kei te whakahaerehia hoki e tā mātou kamupene ngā paipa maitai kore hononga mō ngā hanganga (GB/T 81628163), ngā paipa maitai kore hononga mō te pakaru hinu (GB9948), ngā paipa maitai kore hononga mō te tongi pēhanga teitei (GB6479), ngā paipa hinu (API 5L) me ngā paipa anga hinu (API 5CT), me ngā hononga paipa koranu.