Ihe nkiri ụdị ihe nkiri mkpụrụ ihe nkiri Njirimara na ngwa metal film CrAI, ZnPtNi Au, Cu, AI P, Au Au, W, Ti, Ta Ag, Au, AI, Pt ígwè, nwayọọ steelTitanium alloy, elu carbon ígwè, nwayọọ ígwè Titanium alloyyard iko. plastic Nickel, Inconel ígwè, igwe anaghị agba nchara silicon mgbochi eyi ...
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