Only a few centimeters from his head were two POTS made of clay, tools and materials to make arrows, a bow and a dozen arrows for hunting and a second, smaller copper knife.
NIE J H, JIA C C, ZHANG Y F, et al. Fabrication of carbon nanotubes/copper composites using mechanical milling and spark plasma sintering[J]. Powder Metallurgy Industry, 2011,21(5):44-50.
NIE J H, JIA C C, ZHANG Y F, et al. Fabrication of carbon nanotubes/copper composites using mechanical milling and spark plasma sintering[J]. Powder Metallurgy Industry, 2011,21(5):44-50.