iinxalenye ze-aluminium-machining iinxalenye ezidibeneyo-zomatshini i-composite-box-aluminiyam-plastiki i-pic yeqela elihlanganisiweyo ikhethini-udonga-aluminiyam-iplastiki-composite ikhethini-udonga-aluminiyam-iplastiki-composite-inxalenye