Denka Consultant & Engineering Company Limited

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Flow change-over valve for the blowing of fluids into molten metal...
- Patent number 4,552,334
- Issue date Nov 12, 1985
- Kawasaki Steel Corporation
- Yoshiro Tomiyama
- C21 - METALLURGY OF IRON