High-strength zinc alloy die casting material for beautiful and elegant lock and high security performance.
材质使用高强度锌合金压铸而成，结构美观大方，防盗性强。
The material component, technology, structure and performance of the steel casting end cover are studied.
研究了铸钢端盖材质成分、工艺、组织及性能。
The material component, technology, structure and performance of the steel casting end cover are studied.
研究了铸钢端盖材质成分、工艺、组织及性能。
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