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主体材料采用高强度可锻铸铁,热镀锌防锈。
It's action is insulation protection. The body made of high-intensity malleable iron, hot-dip galvanized.
youdao
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主体材料采用高强度可锻铸铁,热镀锌防锈。
It's action is insulation protection. The body made of high-intensity malleable iron, hot-dip galvanized.
youdao