SISSVoc Default


broader original
narrower sand original
sand-and-gravel original
definition Industrial sand is a term normally applied to high purity silica sand products with closely controlled sizing. It is a more precise product than common concrete and asphalt gravels. Silica is the name given to a group of minerals composed solely of silicon and oxygen, the two most abundant elements in the earth’s crust. more like this
narrower original
broader sand original original
broader sand original
01.01.06 more like this
Sand more like this
source more like this
Resource original
Concept original
in scheme commodity-code original
is primary topic of sand