Min. Order Reference FOB Price
500 Pieces US$1.00-7.00 / Piece
Product Description
Product Discription: We can supply all kinds of bits with holders and blocks in mining and construction, tunneling, steel, forestry, the natural stone industries. Alloy steel body, made by material ASTM4140 or 42CrMo, the heat treatment with 38-42HRC hardness, has high toughness and wearable ...