球头座由锌基合金制成。
稀土基合金的特性能满足人们在特殊材料上的实际需求。
Rare earth base alloy with special characteristic make them potential candidates for function materials.
镍基铸造高温合金K 424使用量多，返回料数量大。
The revert amount of K424 superalloy is quite great because of the wide application.
镍基铸造高温合金K 424使用量多，返回料数量大。
The revert amount of K424 superalloy is quite great because of the wide application.
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