Crystal is defined as the heart of modern timekeeping devices. This is the quartz oscillator that controls the accuracy of a timer. High-quality timing devices contain Temperature-Compensated Quartz Crystals (TCXO) that provide highly accurate timing in great temperature extremes.
"Crystal" is in the HS Code "9013"
Liquid Crystal Devices Not Constituting Articles Provided For More Specifically In Other Headings; L
"Crystal" is in the UNSPSC Code "12162902"
Crystal modified paraffin asphaltene control agents
Other Database Pages Exist for this Phrase:
Alum (Alum refers to astringent crystalline double ...)
Graphite (Graphite refers to a crystalline form of carbon, ...)
List of books: Crystal