Ma Tricone Drill Bits amagwiritsidwa ntchito kwambiri pobowola chitsime pamene mukuyenera kudutsa miyala yofewa komanso yolimba Chifukwa cha kukhudzidwa, kuphwanya ndi kumeta miyala kusweka pamene cone yogudubuza imazungulira, kukhudzana kuli pakati pa chulu ndi dzenje lapansi ndilochepa, pr yeniyeni. ...
Werengani zambiri