Valavu yolowera ndi mtundu wa chitoliro chotumizira cha ufa, granular, granular ndi zida zazing'ono, zomwe ndi zida zowongolera kwambiri kuti zisinthe kapena kutsitsa kutuluka kwa zinthu. Amagwiritsidwa ntchito kwambiri muzitsulo, migodi, zomangira, mankhwala ndi machitidwe ena a mafakitale kuti aziwongolera zinthu zoyenda ...
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