Min. Order Reference FOB Price
1 Piece US$1,700.00 / Piece
Product Description
Reverse Circulation 3 Inch Bit Drill Bit Product Show: Product Description: Introduction of R.C. Drilling and R.C. DTH Hammers It has the following characteristics: R.C. Drilling,referred to as "Center Sample Recovery" or "Dual Wall Drilling", employs a Dual Wall Pipe where ...