ʻO ka graphite crucible, ʻike ʻia hoʻi ʻo ka molten copper ladle, molten copper, etc., pili i ke ʻano o ka crucible i hana ʻia e ke kī ʻana i ka graphite, ka pālolo, ka silica a me ka wax ma ke ʻano he mea maka. Hoʻohana nui ʻia nā crucibles graphite e honi i ke keleawe, ke keleawe, ke gula, ke kālā, ka zinc a me ke alakaʻi a me nā metala non-ferrous a me kā lākou āpau ...
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