carbide drill bit
the new products
be used to drill mine ,road .
cross chisel, chisel bit, coal, mining machine cut cut gear tooth, spin and determing WaJi cut teeth, drill rod, pipe, tooth gear, gear of seat, the wind pipe, high strength cut teeth, engineering cut teeth, bullet head, wind, column teeth drill bit, mine, mine first-class product drill brazing professional production processing of private joint-stock Co., LTD, with shield construction in the subway, railways, highways, mine, water, electricity, water conservancy, municipal engineering field, we develop and produce the hob YuHaiRui totally applicable knife, mitsubishi, Somerville, komatsu, Robbins, petrochemical, Hitachi, rickmansworth island with TBM shield machine etc. Hob, scraper can also according to customer special