carbide insert 1.grade: P30 2.virgin material 3.surface: blank/coated/grinding 4.can do many different material and style Welcome To Yueqing Nanfang Carbide Co.,LtdWe are specialized manufactory of producing middle and high quality cemented carbide goods.such as tungsten carbide insert,tips, drill bits, saw tips, triangle tips, square milling inserts, YG8.2 square tips ,SS10 stone breaking tips, ...