Ubwino wazinthu:
Mu dongosolo PVC, otsika kachulukidwe wothiridwa ndi polyethylene sera itha kupangidwa pulasitiki pasadakhale, ndipo torque yamtsogolo imachepetsedwa.iziop waxali ndi mafuta abwino kwambiri mkati ndi kunja.Itha kupititsa patsogolo kuchulukana kwa utoto, kupangitsa kuti zinthu ziziwoneka bwino komanso zimathandizira kupanga bwino.
Ntchito :
Izo ntchito mtundu masterbatch, mankhwala PVC, Sera emulsion (emulsification), zinthu kusinthidwa.