1855| 2
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設計穿線硬管和穿線軟管時,當用電點到接線箱距離僅500時,可省略硬管直接用軟管? |
Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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