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Citadel Architectural Products Inc. has introduced its Envelope 2000 D-RV, a deep-reveal attachment system that combines shop-fabricated and field-assembled methods to be used with its Envelope 2000 metal composite material. The system can be installed in a variety of configurations that include complementary colored or contrasting accent strips, variable-width joints and a variable-depth checkerboard pattern.

(800) 446-8828; www.citadelap.com