Ntchito Yathu Zida Zathu semifinished mankhwala kunyamula mankhwala omalizidwa mankhwala omalizidwa msonkhano opanda kanthu kuyendera popanda kanthu CNC chithandizo cha cryogenic kubowola makina a lathe kupenta malo kuwotcherera plasma spray kupukuta makina osindikizira makina a lathe