Mu dziko la zomatira, kusankha zinthu zopangira kungakhudze kwambiri magwiridwe antchito ndi kulimba kwa chinthu chomaliza. Chimodzi mwa zinthu zofunika kwambiri ndi hydrocarbon resin, polima wosinthasintha womwe umadziwika m'mitundu yosiyanasiyana ya zomatira. Tangshan Saiou Chemical Co...
Mu gawo lokulirakulira la zipangizo zamafakitale, ma resini a haidrojeni okhala ndi ma hydrocarbon akhala zinthu zofunika kwambiri pa ntchito zosiyanasiyana. Amadziwika kuti ndi olimba kwambiri pa kutentha, osasinthasintha komanso ogwirizana kwambiri, ma resini amenewa amagwiritsidwa ntchito kwambiri popaka, kumatira...