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Read More »China,Vietnam Hardwood Flooring Janka Hardness Test and Inspection Checklist
Janka Hardness Test What is the Janka Hardness Test? Janka hardness test measure the hardness or density of wood. Testing is done on samples, not on actual flooring. It measures the force required to embed a 0.44″ steel ball into the wood until half of the steel ball is into the wood. It was developed as a variation of Brinell …
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