A na-eme ya site n'ịtụgharị obere carbon carbon structural steel ma ọ bụ obere alloy structural steel strip dị ka ụfọdụ akụkụ okirikiri (nke a na-akpọ akụkụ akpụ) n'ime oghere tube, wee na-agbakọ ọnụ ọnụ tube.Enwere ike iji ya dị warara warara Strip steel na-emepụta nnukwu ọkpọkọ nchara nchara.A na-egosipụta nkọwa ya site na dayameta dị n'èzí * mgbidi mgbidi, na ọkpọkọ welded ga-ejide n'aka na ule hydraulic, ike nkwụsị nke weld na oyi na-atụ oyi ga-emerịrị ihe ndị a chọrọ.