English to Italian Tech/Engineering Engineering (general)

The cellulose fibres are produced from the sorted recycled waste paper by mechanical crushing. The waste paper used in manufacturing process has to fulfill the quality criteria given by the manufacturer.
The products are intended to be used for the production of insulation layers (which serve as thermal and acoustic insulation) by means of machine processing at the place of use. The reaction to fire classification of the products is improved during the production process by adding of fire retardant namely boric acid.
Detailed information are deposited with the TZUS Praha,s.p.-branch 0100 Prague.
Note: The insulation has to be covered to avoid direct contact with the user of the ****building***.
The machine processing is carried out in dry conditions (99% of all applications) or under the addition of water (1% of all applications).