... crumbs pressure, assume raw material, decrease scaling loss replacing steel scrap, pig iron, aluminium ingot, useless copper.Be equipment's turn to ... with granular Zhu of powder direct cold pressing such as iron filings, steel cuttings, copper scraps, aluminium scraps piece, to ... have no need of Jiawen, additive, or other handicraft. Cast iron filings inhibiting queen density but amount to 5 ~ 6 T ...