Purchase Qty. Reference FOB Price
100-499 Pieces US$9.00
500-999 Pieces US$7.00
1,000+ Pieces US$5.00
Product Description
Product Description Hot Foundation Drilling bit BFZ80 1 Item No BFZ80 2 Material 42CrMo+YG6C (can be negotiable) 3 Alloy tip made from cobalt powder of thick particles through burning in the vacuum, and suitable grade selected. 4 Body alloy steel selected after heat treatment and high ...