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Three wing enlarge bucket for foundation drilling bucket
Gernal kelly box : Patented design ,more reasonable struction and longer service life
Cylindrical barrel bucket : increase the support spindle barrel to improve structural strength and service life
cutting teeth : use high quality carbide drill teeth and roudn holder ,the gear arrangement methood has been fully designed ,calculated, and product teated to reduce pick wear and improve cutting efficiency .
applicable strate : suitable for soft soil layers such as soil layers and backfills .
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