Christy O'Donovan
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 XL Concrete contractor LLC, a Rockville, MD based company, takes pride
in transforming your outdoor area into something extraordinary.
We offer a variety of custom masonry and concrete solutions for both installations and repair jobs.
From beautiful patios and well-crafted walkways to durable retaining walls and functional driveways,
our skilled and experienced crew is committed to exceeding your
expectations.
Our craftsmanship speaks for itself and use only the best quality materials to ensure your project is not only aesthetically pleasing but also constructed for long-term durability.
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A Ciência & Ensino é uma publicação semestral destinada a professores de ciências do ensino fundamental e médio e seus formadores.