Certificate of non-woodsubstance in two (2) originals to be issued by the Seller.
出口商须出具两份出口货物无使用木质材料的材质证明单。
2
To this class of substance belong mica, porcelain, quartz, glass, wood, etc.
属于这类物质的有云母、瓷器、石英、玻璃、木材等等。
《新英汉大辞典》
3
Kebony stops wood from rotting by placing in a VAT containing a substance called furfuryl alcohol, which is made from the waste left over when sugarcane is processed.