1. Wood Wool Cement Board
(WWCB)
The production of WWCB had
already spread over Europe in the
thirties, several years after wood
wool gypsum boards and wood
wool magnesite boards were
successfully produced and applied
in Austria. After 1950 WWCB
has spread world-wide. In
industrialised countries automatic
plants were installed, in
developing countries usually only
certain essential sections to reduce
the investment and to employ
people.