Specializing In The Production And Sale Of High Precision, Thick Wall Seamless Steel Pipe Industry And Trade Enterprises,
Is The Production, Processing, Trade, Engineering As One Of The Large-Scale Building Materials Enterprises, And Passed The American Petroleum Institute.
Specializing In The Production And Sale Of High Precision, Thick Wall Seamless Steel Pipe Industry And Trade Enterprises,
Is The Production, Processing, Trade, Engineering As One Of The Large-Scale Building Materials Enterprises, And Passed The American Petroleum Institute.