The key issues for bronze gnomon casting with integrated and clear surface in investment casting in plaster mold involves to prevent large plate from deformation and to ensure full mold filling.
2
结果显示青铜器样品均为铅锡青铜，铸造成形；铁器样品为亚共晶白口铸铁；
Results reveal that the bronze vessels are made of Pb-Sn bronze using casting technique, the iron is hypoeutectic white iron, and that the major mineral of the jade is hopfnerite.
3
很多“铜币”实际上是用青铜铸造的，其典型成分是约4%的锡和1%的锌。
"Most" copper "COINS are actually bronze, typically with about 4% tin and 1% zinc, or copper plating over base metal."
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