June 5-6, 2019, Curitiba, Parana (Brazil) :
SEMTEC 6º Seminário Técnico da Indústria do Cimento e Cal
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3-6 May 2020, Vancouver (Canada) :
CIM Convention.
convention.cim.org
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October 18-22, 2020, Cape Town (South Africa)
IMPC 2020(International Mineral Processing Congress).
impc2020.com
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