Abstract
The trade flows of materials were visualized by use of the data from United Nation's COMTRADE database. Subjected materials were Fe at 1992 and Fe, Al, Cu, Ni, Au, Pt, Co, W, Ta, plastics, and chemical products at 2007. While the trilateralism with USA, Germany and Japan at 1992 is releasing to be spread, Japan is still keeping a dominant trade flows in each material. Japan is one of the dominant countries in both cases of the export and the import of materials. The change of the position of material in the international competitive power of countries is discussed. While many countries have tendency to shift the weight from material to products, Japan keeps a special position on materials. From 1990s the share of engineering materials in the export is increasing up to 20%, overriding machines and electric equipments. The importance of engineering material industry on national survival of Japan is increasing.
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