Hunan Tianying Technology Group Co., Ltd

We can manufacture other sized coupling sleeves, which vary in diameter , length , and thread type and outline. The coulping sleeves are used with hyd

Multi-wings PDC bits with composite buttons and geological coring bits with compounded buttons for geological prospecting , gas drainage , water drain

Tricone bit include steel tooth : IADC 127, 126, 117, 216, 125, 215, 311 TCI tricone bit: IADC 517, 527, 537, 547, 617, 515, 525 Application for

DTH hammer and DTH bits are our mainly manufacture products, of which various sizes and styels are availale here to meet different kinds of rock forma

The tapered drill rod are applicable for rock drilling and used with rock drills and other drilling equipments.We can manufacture tapered drill rods w

We can manufacture other sized tube core bis, which connected thread type , apperance, number of carbide tips, carbide tip shape, carbide tip size cou

We can manufacture other kinds of pick cutters with various specifications and carbide tip sizes strictly according to our client's special requr