发布时间:2025-02-01 19:49:52
PG是电缆防水接头的一种螺纹,称为德制牙,但它又不像公制那么明了,比如PG7螺纹直径12.5,我收集一些资料,供你参考吧,
请问下拜访装修公司设计师第一次拜访应该用什么方式拜访要注意些什么
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