density≥0.85g/cm³
deflection of thickness：refer to the form below
Moisture content：＜14%
water sucking rate：≤12%
static elastic quantity：//≥6.5×10³ N/mm²              ┸≥4.5×10³      N/mm²
static elastic intensity：//≥80    N/mm²
            ┸≥55      N/mm²
rushing out indensity：≥50KJ/m²
Surface wearability：≤0.08g/100r
conservation indensity：//≥50     N/mm²
            ┸≥35     N/mm²
sticky intensity：≥0.70     N/mm²
Warping degree the board：≤1.5%
cohesion：1 grade