物料清单(BOM) Bil-of-Material Product structure Tree Bicycle(1) P/N1000 Handle Bars(1)Frame Assembly( PN1001 PN1002 Wheels (2) Frame(1) PN1003 P/N1004 入入物料清单（BOM） Bicycle(1) P/N 1000 Handle Bars (1) P/N 1001 Frame Assembly (1) P/N 1002 Wheels (2) P/N 1003 Frame (1) P/N 1004 Bill-of-Material Product Structure Tree