发布时间:2025-02-07 23:59:14
可以添加,一般可以添加到30%以下,再加多会对表面产生影响,同时制成品会相对变脆。另外如果要增加硬度还可以添加如玻璃纤维、碳纤等。
家里装修准备把电信光纤线埋到墙里需要给线包层什么东西保护线吗
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