Cov ntsiab lus tseem ceeb: zinc alloys yog dav siv hauv chav dej, hnab, khau thiab accessories, vim nws yooj yim, plasticity, tsis tshua muaj nqi thiab kev ua haujlwm siab.Zinc alloy yog siv dav hauv cov khoom siv tu cev, hnab, khau thiab khaub ncaws accessories vim nws yooj yim tsim, muaj zog plasticity, tsis tshua muaj nqi thiab hi ...
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