Oku kulandelayo kukwaziswa okucacileyo kweenzuzo kwiphepha lentsimbi: 1. Ukubonakala kukhanyayo kwaye kucocekile, kwaye i-layout enengqiqo inegridi ekhethekileyo.2. Ufakelo luyindleko ephantsi, kwaye i-overhead sheet sheet ihlanganiswe kumbhobho we-insulation, othengiswa ngokuthe ngqo ngumenzi, kunye nendawo yokufakela encinci kunye neenodi ezimbalwa;3. Amandla acinezelayo alungileyo kunye nokuqina;4. Ubukhulu bodonga bunokukhethwa kuluhlu olukhulu;5. Ukumelana nomhlwa owomeleleyo, olungele zonke iintlobo zealkali eyomeleleyo, inkungu yealkali kunye nezinye iindawo ezomeleleyo ezinomhlwa;6. Iinkcukacha kunye neemodeli zinokwenziwa ngokwezifiso ngokwemigaqo yabathengi kunye nezicwangciso zoyilo lobuchwephesha;7. Ukukhanya kwe-Anti ultraviolet, ixesha lesicelo seshelufu engenanto yangaphandle malunga neminyaka eyi-15, kwaye inokufikelela kwiminyaka engama-30 kwigumbi;8. Inkqubo yomgangatho wempahla iphezulu, kwaye zonke iinqununu zisemgangathweni, ezigcina izinto eziluhlaza, zilungele ukugcinwa kunye nokunciphisa ixesha lokuhambisa;9. Ukucutshungulwa kombhobho womoya kwamkela ubume obuqhubekayo be-spiral undercut, enenzuzo yokuqina okuhle, ukuqina kunye nokungadleki.