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Mikkaichi Steel Tube Works, Ltd.
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Tokushima, JP
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Patent Grant
Inner-space-sectioned tubes and method for manufacturing the same
Patent number
7,431,053
Issue date
Oct 7, 2008
Mikkaichi Steel Tube Works, Ltd.
Mitsuhiro Suzuki
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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