We are one specialist maker of rock drilling tools (drill bits and drill rods), founded in 1958. Our main products include tricone bit, DTH hammer bit, button bit, cross bit,....

We are one specialist maker of rock drilling tools (drill bit and drill rod), founded in 1958.
DTH hammer and DTH bit are our mainly manufactured item, of which various sizes and....

价钱: negotiable

We are one specialist maker of tricone bit (rotary bit), founded in 1958. Various sizes from 3-7/8" to 36" are available at our factory and various styles are applicable for....