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Harex Engineering Co., Ltd., Daegu, Korea

Related Sites

Associations & Institutes:

Portland Cement Association: http://www.cement.org
National Concrete Masonry Association: http://www.ncma.org
Mason Contractors Association: http://www.masoncontractors.org
American Coal Ash Association: http://www.acaa-usa.org
Precast Concrete Paving and Kerb Association: http://www.paving.org.uk
Precast-Prestressed Concrete Institute (PCI): http://www.pci.org

Associations & Institutes:

Portland Cement Association: http://www.cement.org
National Concrete Masonry Association: http://www.ncma.org
Mason Contractors Association: http://www.masoncontractors.org
American Coal Ash Association: http://www.acaa-usa.org
Precast Concrete Paving and Kerb Association: http://www.paving.org.uk
Precast-Prestressed Concrete Institute (PCI): http://www.pci.org

Masonry Design:

Anchor Retaining Wall Systems: http://www.anchorwall.com
Armortec: http://www.armortec.com
Keystone Retaining wall Systems: http://www.keystonewalls.com

Technical:

Manufacture of concrete masonry (CMAA): http://www.cmaa.com.au/pdf/MA46.pdf
Understanding concrete: http://matse1.mse.uiuc.edu/concrete/concrete.html