Bututun walda mai tsayi mai nitsewaLSAW tube(LSAW karfe bututu) ana samar da shi ta hanyar mirgina farantin karfe zuwa siffa ta siliki da haɗa iyakar biyu tare ta hanyar walda ta layi. Diamita na bututu na LSAW yawanci kewayo daga inci 16 zuwa inci 80 (406 mm zuwa 2032 mm). Suna da kyakkyawar juriya ga babban matsa lamba da ƙarancin zafin jiki.
Lokacin aikawa: Satumba-15-2022
