This study has studied to spindle-shaped extrusion ไม้ปล์ามขึ้น sound absorbing plates by using hot-press. By hot-press plates used in the extrusion size is 700 x 700 x 31.25 mm made from aluminium sheet, 4 facing the duality and install heater rods in hot press, 20 sheets, divided into 10 quick glance sheet (300-400 Watts/unit) Private wooden spindle palm oil used in compression wood will be used over the age of 25 years and over, by bringing the first step.
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