SPT: 50---- Phantom assembly (MRP2 -- > special procurement type)
BOM list ( ASM -- the component in this item has its own BOM )
这个phantom 的料号 体现在工单里面的效果； （它是一个组装的线终端)
Indicator: the component in this item has its own BOM.
原文：http://www.cnblogs.com/jefflu2012/p/3993680.html