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Note: Alloy special structural steel.
注：特殊合金结构钢。
youdao
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The product quality carbon structural steel, zinc-plated aluminum alloy made from rare earth.
该产品采用优质碳素结构钢，表面镀稀土锌铝合金制造而成。
youdao
-
The product quality carbon structural steel, zinc-plated aluminum alloy made from rare earth.
该产品采用优质碳素结构钢，表面镀稀土锌铝合金制造而成。
youdao