PCB Copper Chovala
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Zojambula zotsika kwambiri zimachitidwa zojambulajambula zamkuwa
Monga zojambula zosinthika, zomwe zimapangidwazi zimakhala ndi kusintha kwamitundu yabwino. Itha kufupikitsa ntchito yopanga, kukwaniritsa kuthamanga kwapamwamba komanso ma ccrong, ndikusintha kuchuluka kwa ma PCB.