Okokuqala, ithuluzi lingahlukaniswa ngezigaba ezinhlanu ngokusho kwefomu le-workpiece processing surface: 1. Ukukhanda amathuluzi ahlukahlukene angaphandle, okuhlanganisa amathuluzi okuguqula, imimese yokuhlela, abasiki bokugaya, i-broach yangaphandle kanye nefayela;2. Amathuluzi okucubungula imigodi, okuhlanganisa ukubhoboza, ukuphinda...
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