马口铁材质是何意SPCC 及 MR .请详细说明,谢谢baby→坏坏ゞ的回答!请细说这两种材质代表的含义.再谢.
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![马口铁材质是何意SPCC 及 MR .请详细说明,谢谢baby→坏坏ゞ的回答!请细说这两种材质代表的含义.再谢.](/uploads/image/z/3324328-16-8.jpg?t=%E9%A9%AC%E5%8F%A3%E9%93%81%E6%9D%90%E8%B4%A8%E6%98%AF%E4%BD%95%E6%84%8FSPCC+%E5%8F%8A+MR+.%E8%AF%B7%E8%AF%A6%E7%BB%86%E8%AF%B4%E6%98%8E%2C%E8%B0%A2%E8%B0%A2baby%E2%86%92%E5%9D%8F%E5%9D%8F%E3%82%9E%E7%9A%84%E5%9B%9E%E7%AD%94%21%E8%AF%B7%E7%BB%86%E8%AF%B4%E8%BF%99%E4%B8%A4%E7%A7%8D%E6%9D%90%E8%B4%A8%E4%BB%A3%E8%A1%A8%E7%9A%84%E5%90%AB%E4%B9%89.%E5%86%8D%E8%B0%A2.)
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