Aluminiyamu alloy extrusions amagwiritsidwa ntchito kwambiri m'mafakitale ambiri ndi ntchito chifukwa cha kulemera kwawo, mphamvu ndi kusinthasintha.Komabe, kuti ma profayilowa akhale okongola komanso okhazikika pakapita nthawi, kuwongolera moyenera ndikofunikira.M'nkhaniyi, tikambirana ...
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