| Tongyu has become the largest manufacturing base of wind power main shafts and ductile cast iron pipe moulds. As one of the leading manufacturer of heavy castings & forgings, the co***ny is capable of providing key castings & forgings for industries of metallurgy, mining, power, shipbuilding, petrochemical, ocean engineering, aero***ce, etc. Such as large rollers, pressure piping, rotors of large steam turbines and generators, marine shafting, large crank shafts, pressure vessel, internal-combustion engine castings, etc.
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