20G paipa uʻamea seamless o se ituaiga masani o paipa uamea seamless. O le "20G" i lona igoa o loʻo faʻatusalia ai mea o le paipa uʻamea, ma le "seamless" o loʻo faʻatusalia ai le gaosiga o gaosiga. O lenei uʻamea e masani ona faʻapipiʻiina i le carbon steel, alloy steel, ma isi mea, ma e iai mea faʻainisinia lelei ma faʻamalosia. O uiga autu o le 20G paipa uʻamea le lelei o le maualuga o le vevela, teteʻe o le corrosion, maualuga le malosi o le compressive, ma isi. O le mea lea, e faʻaaogaina lautele i le suauʻu, kesi masani, kemisi, eletise eletise, fausiaina ma isi fanua.

Tulaga fa'atinoga:
1. paipa u'amea seamless mo fausaga:GB8162-2018
2. Seamless paipa uamea mo le felauaiga vai: GB8163-2018
3. paipa u'amea le lelei mo le maualalo ma feololo faumea faumea faumea:GB3087-2018
4. maualuga-omiga seamless paipa mo boiler:GB5310-2018
5. Pipa u'amea su'esu'e maualuga maualuga mo meafaigaluega fa'afuifu:GB6479-2018
6. paipa u'amea seamless mo ta'e suauu:GB9948-2018