Our company is specialising in drilling rigs and drilling parts for decades. We have exported to more than 30 countries all over the world. We have kinds of drilling rigs, such as DTH (Down The Hole) drilling rig, Water well drilling rig, Oil well drilling rig, Piling drilling rig with different types of Truck Mounted, Trailer Mounted and Crawler Type. For drilling parts, we have the follwings: DTH hammers/bits, Tricone bits, PDC Bits, Button Bits, Chisel Bits, Drill Pipe, Pick Cutters etc.

Model	Thread Connection	OD(mm)	Rec.Hole Size	Shank Style	Working Pressure(Bar)
CD35	API 2 3/8" Reg	φ82mm	φ90-φ105	DHD3.5 CD35	1.0-1.5Mpa
CD45	API 2 3/8" Reg	φ99mm	φ110-φ135	Cop44 DHD340 CD45	1.0-2.5Mpa
CSD4	API 2 3/8" Reg	φ99mm	φ110-φ135	SD4 CSD4	1.0-2.5Mpa
CQL40	API 2 3/8" Reg	φ99mm	φ110-φ135	QL40 CQL40	1.0-2.5Mpa
CD55	API 2 3/8" Reg API 3 1/2" Reg	φ125mm	φ135-φ155	Cop54 DHD350R CD55	1.0-2.5Mpa
CSD5	API 3 1/2" Reg	φ125mm	φ135-φ155	SD5 CSD5	1.0-2.5Mpa
CQL50	API 3 1/2" Reg	φ125mm	φ135-φ155	Cop54 QL50 CQL50	1.0-2.5Mpa
CD65	API 3 1/2" Reg	φ148mm	φ155-φ190	Cop64 DHD360 CD65	1.0-2.5Mpa
CSD6	API 3 1/2" Reg	φ148mm	φ155-φ190	SD6 CSD6	1.0-2.5Mpa
CQL60	API 3 1/2" Reg	φ148mm	φ155-φ190	Cop64 QL60 CQL60	1.0-2.5Mpa
CD85	API 4 1/2" Reg	φ185mm	φ195-φ254	Cop84 DHD380 CD85	1.0-2.5Mpa
CSD85	API 4 1/2" Reg	φ185mm	φ195-φ254	SD8 CSD8	1.0-2.5Mpa
CQL80	API 4 1/2" Reg	φ185mm	φ195-φ254	QL80 CQL80	1.0-2.5Mpa
CSD10	API 4 1/2" Reg API 5 1/2" Reg API 6 5/8" Reg	φ225mm	φ254-φ311	SD10 CSD10	1.0-2.5Mpa
CN100	API 6 5/8" Reg	φ225mm	φ254-φ311	NUMA100 CN100	1.0-2.5Mpa
CSD12	API 6 5/8" Reg	φ275mm	φ305-φ445	SD12 CSD12	1.0-2.5Mpa