The architects used finishes made from organic, environmentally friendly stains and sealants that contain natural resins and gums extracted from treeheartwood.
建筑师用有机、环保的染料和密封剂制成饰面，含有天然树脂和树心提取的树胶。
2
A spiny tropical American tree(Haematoxylon campechianum) in the pea family, having dark heartwood from which a dyestuff is obtained.