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La evolucion en la microdureza del material base (MB) con y sin modificacion superficial se presenta en la Figura 3.
Undoubtedly, environmental protection industry in China, which is both technical guarantee and material base against environmental pollution, has still enormous market potential.
Open competition: execution of development of project documentation in an amount sufficient for overhaul, with obtaining all necessary approvals; obtaining positive conclusions to verify the reliability of determining the estimated cost for the program: "capital repairs and strengthening of the material base of buildings (rooms) of youth centers of the republic of tatarstan in 2018"

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