magnesium oxide board

Description

Mgo board technical date:
Fireproof:A grade (GB***4)
Density:0.***1.*3g/cm3 (GB/T********7)
Intensity of bending resistance when dry:*8Mpa (GB/T********7)
Intensity of bending resistance when moisture-saturated condition:*2Mpa (GB/T********7)
The rate of deformation when pick up the moisture:0.*6% (GA*******7)
The shrinking rate when heated:1.0% (GA*******7)
Water permeability:There is no drop of water to emerge in the back (CNS ****8)
Impact resistance:No carck,strip and run through (CNS ****8)
Thermal resistance:1.*4m2K/W (GB/T*******2)
Sound insulation:>*4db (GBJ*****8)
Security:**0%no asbestos. 

Common size:
***0mm****0mm*3mm**0mm
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**0mm****0mm*3mm**0mm

Kinds of edge:
Square edge
Beveled edge
Tapered edge