FRANKFURT : German military equipment maker Rheinmetall's chip supplies should last five years after it spent 500 million euros ($519 million) this year to ramp up inventory of semiconductors and electronic components, Rheinische Post reported on Friday.Rheinmetall's share price has almost doubled sinceFRANKFURT : German military equipment maker Rheinmetall's chip supplies should last five years after it spent 500 million euros ($519 million) this year to ramp up inventory of semiconductors and electronic components, Rheinische Post reported on Friday.Rheinmetall's share price has almost doubled since Germany's Rheinmetall has 5-yr supply of semiconductor chips - Rheinische Post - CNA