Ndife mabuku apamwamba-chatekinoloje ogwira okhazikika mu kafukufuku ndi chitukuko;kupanga ndi kugulitsa zida zatsopano zomangira zoteteza zachilengedwe zamatabwa ndi pulasitiki ndi bolodi la thovu la PVC.
Werengani zambiriYang'anani pakupanga PVC foamed board.Zaka zambiri zaukadaulo waukadaulo komanso chitsimikizo champhamvu.Khazikitsani kupanga, kugulitsa ndi ntchito mu imodzi mwamabizinesi opanga thovu la PVC.
Chitsimikizo cha khalidwe Zigawo za kuwongolera khalidwe, mosamalitsa kulamulira khalidwe.Gulu lililonse lazinthu kuti liwonetsetse mwatsatanetsatane, Kutetezedwa kwaumoyo wathanzi, kukhazikika.
Opanga mwachindunji, palibe kusiyana pakati Kupanga koyenera.Sungani ulalo wapakatikati, kuzungulira ndi kwaufupi, kubereka mwachangu, kungapereke makonda.