Coulpling sleeves

الوصف

Hunan Tiangying Technology Group Co Ltd is  one specialist maker of rock drilling tools with *1 year manufacturing experiencce. The main products include tricone bit, DTH hammer, DTH bit, bit, cross bit, chisel bit, taper rod, extension rod, shank adaptor, coupling, pilot adaptor and reaming bit, pick cutter, cutting tools, carbide tip and other drilling accessories, which are used for mining, quarrying, tunneling, piling, water drilling, geological prospecting, mineral exploration, civil engineering and construction.

The main products are divided into four series:
1. Drilling tools for geological prospecting and mineral exploitation.
Tri-cone bit series, chisel bit series, cross and bits series, down the hole bits series, drill bits series for coal cutting, core bits series, drill rods series, coupling sleeve series.
2. Drilling tools for road construction and slope protection
Road planning and trenching bit series, road picks for grader series, blending shovels series, all steel cross bits series, drill bits series for cutting anchor hole.
3. Drilling tools for steel refining in large steel works
Steel bit series and drill bits series for cutting iron hole
4. Drilling tools for architectural engineering
Drill bit series for piling on the architectural base