Min. Order Reference FOB Price
100 Pieces US$3.50 / Piece
Product Description
Product Description Hot Foundation Drilling bit C20 (FC20) 1 Item No C20 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 ...