Ho Yuebang khalase, re ba motlotlo ka ho ba mofani oa liphatlalatso tse etellang pele tsa li-profiles tsa PVC bakeng sa lihlahisoa tsa bolotsana, ho kenyeletsoa menyako ea khalase ea veine. Joaloka moetsi ea tšepahalang Chaena, re etelletsa pele ho fana ka mafura a phahameng - Litharollo tsa boleng bo fumanang litlhoko tsa bareki ba rona. Liphatlalatso tsa rona tsa PVC tse sa sebetseng li entsoe ka nepo - Lisebelisoa tsa sehlopha le theknoloji ea sehlopha ho netefatsa hore ho se bolokehe le ts'ebetso. Ka boitlamo ba rona ka matla a hau a boqhele, re atlehile nako e telele - matsale a batho ba nang le bareki lefatšeng ka bophara.



Menyako ea rona ea veine e lefunyane ea kh khalase e tsoang Chaena ha e sebetse feela empa e khahlisa ka mokhoa o khahlisang. Re fana ka mefuta e mengata ea tloaelo ea tloaelo, re e lumella ho theha meralo e ikhethang e phethahetseng lihlahisoa tsa hau hantle. Hore na o hloka boholo ba boholo bo tobileng, lichelete kapa likarolo, sehlopha sa litsebi tsa boiphihlelo se ikemiselitse ho phethahala. Ka boemo ba rona - Tšepa khalase ea yuebang khalase bakeng sa tharollo e tšepahalang e kopanyang ts'ebetso e phahameng ka mokhoa o ikhethileng.