在我国商品木材中最轻的要算轻木,最重的可能要算黑黄檀了。轻木(Ochroma pyramidale)是木棉科的常绿乔木,原产于美洲热带。它性喜高温、高湿的气候,生长一年可高达5—6米,胸围30—40厘米,五年可成材砍伐,是一种典型的热带速生木材。轻木烘干后的比重为0.1—0.2,木材的物理性能良好,具有隔音,隔热的特点,是航 The lightest in China’s timber products to count light wood, the heaviest may be counted black rosewood. Ochroma pyramidale is an evergreen tree of the family Cembiformids native to the Americas. It is like the high temperature, high humidity of the climate, growth of up to 5-6 meters a year, bust 30-40 cm, five years of timber can be cut, is a typical tropical fast-growing timber. Light wood drying after the proportion of 0.1-0.2, the physical properties of wood is good, with noise, heat insulation is the route