Ko te graphite crucible, e mohiotia ana ko te ladle parahi whakarewa, te parahi rewa, me etahi atu, e pa ana ki tetahi momo parapara i hangaia ma te pupuhi kauwhata, uku, silica me te wax hei rauemi mata.Ka whakamahia te nuinga o nga parapara graphite ki te whakarewa i te parahi, te parahi, te koura, te hiriwa, te konutea me te mata me etahi atu konganuku kore-ferrous me o raatau katoa ...
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