Tare da haɓaka manufofin "carbon dual carbon" na kasar Sin, ana ƙara jaddada ceton makamashi da rage carbon a cikin gine-gine.Wurare da yawa sun haramta ko ƙuntata yin amfani da rufin bango na waje, ƙulla bangon filasta na bakin ciki a cikin manyan gine-gine, da kuma rufin bangon waje wanda aka gyara kawai ta hanyar mannawa.Fa'idodin sanwicin da aka riga aka keɓancewa wanda aka keɓance bangon fata biyu (wanda akafi sani da bangon fata biyu tare da rufin rufi) yana zama sananne.

Sanwici da aka riga aka kera wanda aka keɓance bangon fata biyu sune abubuwan bangon bango waɗanda aka yi su da yadudduka biyu na ƙaƙƙarfan ƙwanƙwasa ƙwanƙwasa da aka haɗa ta hanyar haɗin kai don samar da bangon bango tare da rami na tsakiya don dalilai na rufi.Bayan shigarwa a kan shafin, an cika rami da aka zubar da kankare don samar da bango tare da aikin rufewa.

Sanwici da aka riga aka kera wanda aka keɓance bangon fata biyu baya buƙatar grouting hannun riga, yadda ya kamata yana rage wahalar gini da tsadar gini.Suna da abũbuwan amfãni irin su juriya na wuta, juriya na harshen wuta, babu ci gaban mold, da thermal rufi.