Jiangxi Kingan Hi-Tech Co., Ltd.
Jiangxi Kingan Hi-Tech Company Limited, founded in 1988, is a high-tech enterprise engaged in the research
http://www.chinazrchem.com/

Zibo Huantuo Chemical Co., Ltd.
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http://www.huantuochem.com

LANL: Zirconium
History, isotopes, properties, and uses.
http://periodic.lanl.gov/elements/40.html

It's Elemental: Zirconium
The Element Zirconium - Basic Physical and Historical Information
http://education.jlab.org/itselemental/ele040.html

Representaciones Alfacircon, C.A.
Alfacircon - Toda clase de productos de circonio para la industria química, cerámica, cerámica avanzada, metalmecánica, sandblasting para el Pacto Andino y Centroamerica
http://www.circonio.net/defaultgb.htm

AMR Technologies, Inc.
Engineers rare earths, zirconium and magnets into materials.
http://www.amr-ltd.com/

ChemicalElements.com: Zirconium
Basic information, atomic structure, and isotopes.
http://www.chemicalelements.com/elements/zr.html

Mel Chemicals
Nano stabilised zirconia for structural ceramics, electronics, gas sensors, thermal barrier coatings, fibre optics, solid oxide fuel cells
http://www.zrchem.com/nano.htm

Visual Elements: Zirconium
Image, uses, physical information, and ionisation energies.
http://www.chemsoc.org/viselements/pages/zirconium.html

Wikipedia: Zirconium
Properties of the element, including its history, applications, and characteristics.
http://en.wikipedia.org/wiki/Zirconium