...块化教学；现代精密铸造 [gap=446]Key words】modern solidification technology；modular teaching；modern precision casting ...
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The company possesses advanced casting equipment and modern precision casting technology. She can produce all kinds of Hi-tech precise casting products.
公司拥有先进的冶炼、铸造生产设备，能生产各类精密合金铸件。
Silver, because the circulation time is short, there is very little, the modern mechanism of the famous silver treasures, this gold casting precision.
银币，因流通时间短暂，存世甚少，是近代机制银币之著名珍品，此枚铸造精。
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