发布时间:2025-01-24 21:11:59
1、亚克力材质的透明度是PVC和PC所不具备的。优点:透明度明显高于其他材质、加工性能良好 缺点:亚克力容易刮花、易碎。
2、PVC材质:容易加工、耐冲击力比压克力高。优点:不易燃烧有阻燃的作用。耐冲击力较高。 缺点:透明度不高。偏蓝色
3、PC材质:硬度强、比PVC和亚克力的价格高。优点:能耐冲击力和耐高温。有防爆作用。缺点:硬度高,不容易加工。
用itunes恢复iphone4出现未能恢复iphone发生未知错误4013怎么办
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