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MercoPress
10 天
Brazil world leading producer and exporter of rare mineral Niobium
Niobium, a rare mineral primarily used to improve steel alloys, and of which Brazil is the world's main producer has seen ...
The Fabricator
10 天
Metal Fabricating Glossary
Also called extra-deep-drawing steel or EDDS, it is a type of steel that typically contains less than 0.005 percent carbon and uses a low level of titanium and/or columbium to "tie up" hardening ...
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