常用材料：钛、钛合金、不锈钢、铁、铝、铜、铍铜等。

Commonly used materials: titanium, titanium alloy, stainless steel, iron, aluminum, copper, beryllium copper.

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常用材料：钛、钛合金、不锈钢、铁、铝、铜、铍铜等。

Commonly used materials: titanium, titanium alloy, stainless steel, iron, aluminum, copper, beryllium copper.

youdao