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Mulu wa Hammer
Pile driver ndi mtundu wamakina omanga omwe amagwiritsidwa ntchito kuthamangitsa milu pansi.Itha kuyendetsa milu yopangidwa ndi zinthu monga konkriti yolimba kapena matabwa pansi pogwiritsa ntchito nyundo yolemera, silinda ya hydraulic, kapena vibrator kuti ipititse patsogolo kutha kwa nthaka, kuteteza nthaka kukhazikika kapena kutsetsereka, ndi nyumba zothandizira, ndi zina zambiri.
