|National Gypsum, known as
the leader in quality, customer
service, and innovation, manufactures Gold Bond® gypsum board; ProForm® finishing products,
and PermaBase® cement board.
|The PURPLE Book®||The SoundBook™||DEXcell|
| The PURPLE Book is an ideal commercial construction project resource,\ with nearly 100 technical drawings.
||The SoundBook contains 165 sound rated assemblies to meet demands for sound control.||>||
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