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Cole-Parmer Fowler 52-413-006 NIST-Certificate Ruler, 6" L Rigid Steel, 4R Intervals
Supplier: Cole-Parmer 0991904
Certified rulers are made of hardened and tempered steel and feature easy to read graduations on a non-glare satin chrome finish. Each Fowler Ruler is Pre-Certified for ISO/QS9000 requirements and includes a certificate of calibration.
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