Waraaqaha biraha ee dhererka-dhererka-dhererka ah waa dhisidda iyo alaabada bir ee warshadaha ee ay soo saareen oo ay soo saareen oo goynayaan xirmooyin bir bir ah oo midab leh godad dabacsan oo go'an. Waxay soo bandhigaan iska caabbinta sare, midabbo badan oo kala duwan, iyo hawlgal aan macquul ahayn, waxaana si weyn loogu isticmaalaa dhisida baqshada, soosaarka qalabka guryaha, iyo meelaha kale. "Dhererka-dhererka" waa farsamada haynta birta ee ku lug leh wax soosaarka, heerka, iyo jaridda xirmooyinka birta ah ee bir bir ah oo loo rogo go'yaal cayiman iyadoo la adeegsanayo mashiinka heerka. Xaashiyaha biraha ee midabka leh "waa go'yaal bir-bir ah oo horay loo jabay oo laga sameeyay bir qabow, bir bir ah, ama xargaha aluminic-zodc (sida polyester) (sida polyester, PVDF, iwm.) Codsi dusha sare. Xaashida "dhererka midabka-dhererka-dhererka '' hakin xoogga birta halka ay sidoo kale haystaan ​​guryaha qurxinta iyo waxyaabaha ka hortagga hubedda, taasoo ka dhigeysa inay ku habboon yihiin rakibaadda goobta. Noocyada sunta aasaasiga ah: Xaashida bir-qabowga, xaashida birta ee qabow (GI), Steel Steel Steel Steel Steel Steel (GINESS): POLEERSEST): Qiimaha Sare (Polyester): Khilaafaadka ee ku habboon deegaannada gudaha iyo guud ahaan; SMP (Silicon wax laga beddelay polyester): iska caabbinta cimilada ee ka fiican PE caadiga ah; PVDF (polyvinyliene foloride): Ultra-daadsanaanta, iska caabbinta UV ee adag, oo loo isticmaalo dhismayaasha dhamaadka-sare; HDP (Dheeraad Dheeraadka Sare ee HDP): Inta u dhaxaysa SMP iyo PVDF. Noocyada filimada polymer waxaa ka mid ah PET, PP, PVC, iwm.