E entsoe ka ho roala tšepe e nang le khabone e tlase kapa tšepe e nang le alloy e tlase ho latela sekhutlo se itseng sa spiral (se bitsoang forming angle) hore se be le letho, ebe se tjheseletsa seam ea tube hammoho.E ka etsoa ka moqotetsane Strip tšepe hlahisa liphaephe tse kholo tsa tšepe bophara.Litlhaloso tsa eona li hlahisoa ka bophara bo ka ntle * botenya ba lebota, 'me phala e cheselitsoeng e tla netefatsoa hore tlhahlobo ea hydraulic, matla a thata a weld le ts'ebetso e batang ea ho khumama e tlameha ho fihlela litlhoko.