P3Y4R1O1M3E1T1A1L1L1U1R1G2Y4
25 points
PYROMETALLURGY is validvalid
chemical metallurgy depending on heat action (as roasting and smelting)
chemical metallurgy depending on heat action (as roasting and smelting)
chemical metallurgy depending on heat action (as roasting and smelting)
chemical metallurgy depending on heat action (as roasting and smelting)