Ειδικό DTH από χάλυβα με τρύπα για γεωλογική έρευνα

Video Description:
Discover the 203mm Special Steel DTH Bit with Flushing Hole, designed for geological exploration. Ideal for mining, quarrying, and construction, this high-performance bit ensures fast drilling and durability. Packed in ply-wooden cases for easy transport.
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