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writing tablet: Thephenolic compact laminate hpl sheet details as follow,Thickness: from 4mm to 25mmSize (mm):As per demands on the chair. 1220*1830mm, 1350*1830mm, 1220*2440mm, 1525*1830mm, 1830*1830mm, 1830*2440mm.1220*3050mm, 1220*3660mm, 1525*3050mm, 1525*3660mm, 1830*3660mmDetection data of Compact laminate:Compressive strength: 280MPa as per ASTM D695-02aRockwell hardnessR:123/ as per ASTM D785-03Linear expansibility (-30 +30) as per ASTM D696-03: Horizontal 2.48 X 10-5-1,Vertical 2.55 X 10-5-1,Moisture (3, 24h): 0.81% as ASTM D-570-98Tensile strength: H 90.0MPa, V 87.7MPa as ASTM D638-03Bending strength: H 107MPa, V 121MPa as ASTM D790-03Flexural modulus: H 12.0GPa, V 13.1GPa as ASTM D790-03Impact strength of cantilever beam gap: H49.2 J/m, V 48.3J/m as ASTM D256-06aFeature:Water & Humidity resistance, impact resistance, Heat & Cigarette burns resistance, Chemical proof, Wearresistance, Firm, Crashworthy, Antibristletail and antibacterial.Usage:Chair, school chair, meetting chair,Compact desk, Tank of reposition, Partition wall & door, Partition of toilet & bathroom, Equipment of laboratory, Kitchen desk meeting room desk, wardrobe, locker, cabinet and other ways.Color:solid color,wood grain colorspecial color.