https://scholar.google.com/scholar?q=bullet+casting+alloys&hl=en&as_sdt=0&as_vis=1&oi=scholart https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=1d1fff8f1cbf7d1f32c97104f242ca86fef3983f http://www.lasc.us/SAAMIMaxPressure.htm...
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