但又不(bú )是特别贵重的材料;罡(gāng )风银就有点(diǎn )说(shuō )道了(le ),需要用(yòng )特殊(shū )手法将质地柔软的银块炼制一(yī )番,改变内部的结构,然(rán )后将其带(dài )到(dào )上万(wàn )米(mǐ )高空,经受(shòu )强大风力(lì )的磨炼,内部(bù )会慢慢被灌注上凌厉的风属性灵气(qì ),而这个(gè )时间至少要持续数年才能完成,所以罡风银(yín )并(bìng )不多见(jiàn ),不过洛云门的库房内(nèi )还是有(yǒu )几块的。主(zhǔ )材(cái )云岚石就更难得了,