Iphrofayili yemboni ye-aluminium anodized ye-Zhongchang, ongeke ukwazi ukuthola imigqa eyimishini endaweni enokucubungula okuhle kwe-sandblasting. Ingaphezulu alikwazi ukuklwejwa ngogqinsi lwe-anodizing phakathi kuka-10 no-13 μm. Izimpawu zokuklwebheka ezincane zingasuswa kalula. Kodwa-ke, eminye imikhiqizo yephrofayili enombala ofanayo emakethe ingalinyazwa kalula ngenxa yobukhulu obuncane, futhi kunzima nokukhipha izimpawu zokuklwebheka ezindaweni zayo.