chengdu guangda machinery co.ltd

dear sir

this is chengdu guanda machinery co.ltd. we produce drill bits , such as

cross type bits

button bits

tapered drill rod

shark adapter rod standard

Threaded Bits (Cross & Button Type), Coupling Sleeves, Shanks rifting rod

coupling sleeve

shank adapter

extesion drill standard

MF-rod

bits and adapter coupling

latent-hole bits

latent-hole rod
Mid-hollow rock drill steel bar
Expanding hole drill equipment
Rock drill rods
Shank adaptor
Tread extension drill rods
Petal type bits
Diving bits
Button bits
Straight tread thickening reinforcing bar joins, coupling sleeves
Fix anchor tool
Phombus section coal rotary rods
Pneumatic picks, shovels, hammer