Phaephe ea tšepe e otlolohileng ea moalo ke phaephe ea tšepe eo moalo oa eona oa ho tjheseletsa o tsamaellanang le tataiso e telele ea phaephe ea tšepe. Ts'ebetso ea tlhahiso ea phaephe ea tšepe e otlolohileng ea moalo e bonolo, e na le katleho e phahameng ea tlhahiso, litšenyehelo tse tlase le nts'etsopele e potlakileng. Matla a liphaephe tse tjheselitsoeng ka spiral ka kakaretso a phahame ho feta a liphaephe tse tjheselitsoeng ka moalo o otlolohileng.
Liphaephe tsa tšepe tse otlolohileng tse nang le seam li ka aroloa kaPhaephe ea tšepe ea ERWle liphaephe tsa tšepe tse otlolohileng tse koaheletsoeng ka arc tse phuthetsoeng ka har'a arc (Phaephe ea LSAW) ho latela mokhoa oa tlhahiso.
Bolelele ba phaephe ya tshepe e otlolohileng ya seam hangata ke 6000 mm-1200 mm.
Phaephe e chitja ea ERW: 21.3mm ho isa ho 508mm; Phaephe e chitja ea LSAW: 406mm ho isa ho 2020mm
Nako ea poso: Pherekhong-21-2022