小胖胖的老婆 2022-04-14 15:45 热缩管的价格是跟管径正相关的，管径越大，价格越高。比如最常用的Φ3mm的大约0.2元/米；Φ20mm的就要到1元钱左右一开发者_如何学编程米。如果按重量来估算的话，普通电器热
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