尼日利亚采购需求：布儒斯特角、浓度梯度晶体、倍频晶体、感应炉晶体、中红外晶体、钕玻璃激光器

I'd like to inquire about the specific type of crystal sample we discussed. Could you please provide more details about its composition? I'm particularly interested in understanding whether it contains methamphetamine or if it's a different substance altogether. Additionally, any information regarding its properties and potential uses would be greatly appreciated. This will help us assess how it fits into our current needs. Thanks for your help!