Min. Order Reference FOB Price
1 Piece US$50.00-2,000.00 / Piece
Product Description
T51 4 Inch DTH Button Bits high speed DTH drill threaded drill bit Advantages: 1. High quality raw material, with premium hardened procedures for long life. 2. Full production chain to secure stable and prompt production leadtime. 3. Experienced senior technicians and long year experienced ...