coal cutter bits bullen bits road planing tools drilling bits milling rods button sets...

It was since 1990 that our company engaged in manufacturing and exporting components for mold and die. Now our main products and services include: precision components ...

zhongshan road  Qingdao, Shandong

We are professional manufacturers of rockdrilling bits and rigs. Inlucding DTH bits, THD bits,road milling bits, and related rigs, with competitive price and qualified quality. pls kindly contact us. ...