... drilling, trenching, tunneling, mining etc, aslo casing bits and cutters for shield machine.Round cutter Parts No.as C31HD, B47k17H, ... Parts No. as BFZ80, BFZ70,Bucket teeth T25series and holder,T18 series and holder,Holders parts No. as C30, B43H, ... sure the good performance during working.For Areas Using:Foundation creationSolid wallWater well drillingFor Machines :The products adapt to the machine ...