外壳用高强度铝合金制造并经特殊处理,光学零件全镀膜。
It's outer casing is made of high strength aluminium alloy, and treated by a special process. It's optical part is full coated.
外壳用高强度铝合金制造并经特殊处理,光学零件全镀膜。
It's outer casing is made of high strength aluminium alloy, and treated by a special process. It's optical part is full coated.
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