O paipa u'amea e leai ni fa'auiga mo fa'auala maualalo ma feololo (GB3087-2018) o le maualuga o le carbon structural steel heat-rolled and cold-drawn (rolled) seamless tubes, o loʻo faʻaaogaina mo le gaosiga o paipa ausa, faʻafefe vai paipa mo fausaga eseese o le maualalo ma le vaeluaga o le mamafa o le mamafa ma paipa ausa superheated, paipa asu tele. , paipa asu laiti ma paipa piliki faaofuofu mo boilers locomotive.

O pito o le paipa uʻamea e tatau ona faʻasaga i le axis o le paipa uʻamea, ma e tatau ona aveese burrs.GB3087masani paipa uamea e masani ona faia i le 10, 20 vevela lo'a po'o malulu taai maualuga maualuga carbon structural sila, e masani ona manaomiamamafa vaie, crimping, mumu, faamafolafolama isi su'ega e fa'amautinoa ai le lelei ma le fa'atinoga o oloa.