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Moisture Resistant (MR) grade blockboard inspection,quality control,assurance,factory auditing,sourcing,manufacturing

MR GRADE
Parameters Specified value Observed value
Adhesion of plles Pass Standard Excellent
Resistance to water Pass Standard Excellent
Modules of elasticity (N/sq.mm) 4000 4000-5000
Modules of rupture (N/sq.mm) 40 40-50
Dimensional changes caused by humidity d L 1/150 d L 1/150
Mycological test No de-lamination Excellent
Preservative treatment Borax treatment of frames Borax treatment of frames.
Glue Line Treatment.
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