Ndi chitukuko cha sayansi yamakono ndi luso, makampani zitsulo monga "mafupa" makampani dziko, udindo wake akukhala zofunika kwambiri, ndi zofunika zitsulo khalidwe ndi okhwima, amene ndi imodzi mwa njira zothandiza kusintha Ubwino wa zitsulo za carburization desulfurization, kashiamu wopanda Seamless Solid Calcium Cored Waya momwe umagwira ntchito yofunika kwambiri.
Ogulitsa Otentha China Carbon Black N660 Opanga Zitsanzo zaulere ndi Otsatsa. Harvest Enterprise ndi Carbon Black N660 wopanga komanso ogulitsa ku China. CarbonBlack N660 ndiyoyenera mphira wamitundu yonse. Poyerekeza ndi theka-amalimbitsa mpweya wakuda, izo ali apamwamba dongosolo, particles bwino, zosavuta kumwazikana mu mphira pawiri.
Mafuta a petroleum resin (hydrocarbon resin) ndi utomoni wa thermoplastic wopangidwa ndi pretreatment, polymerization, distillation ndi njira zina za C5 ndi C9 tizigawo tomwe timapangidwa ndi kusweka kwa petroleum. Si polymer yapamwamba, koma polima yotsika yama cell pakati pa 300-3000.