Min. Order Reference FOB Price
1 Piece US$1.00-200.00 / Piece
Product Description
A SERIES BIT MATRIX Bit Matrix No. Rock Features Rock Type Hardness A2 Extremely abrasive,highly fractured Wear-resistant sandstone, broken wear-resistant sandstone A3 Medium soft,abrasive,fractured Broken wear-resistant sandstone, sandy shale, limestone, threshite A4 Medium ...