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Retaining its crystalline structure at temperatures up to its melting point,Rhenium i...
We can supply ASTM:A572Grade50 A709Grade50 A588GradeB A633GradeD A633GradeE A573Grade...
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Brief introduction: http://www.chinanonferrousmetals.com Niobium is a gray metal an...
Brief introduction of niobium wire: http://www.zzstc.com/Niobium/niobium-wire.html ...