ASTM A179 e koahela bonyane botenya ba lebota, li-tubes tsa tšepe tse sa batang tse huloang ka tlase bakeng sa li-tubular, mochini o futhumatsang mocheso, li-condensers le lits'ebeletso tse ling tsa phetisetso ea mocheso.Seamless ASTM A 179 tube ea tšepe e fanoa mme e hlahisoa ka mokhoa o batang oa ho taka.Motsoako oa lik'hemik'hale o na le carbon, manganese, phosphorus le sebabole.