Профессионал графит материалым поставщик, графитлан EV, ӱй, пече да кеч-могай моло отрасль.

Expandable graphite: a new type of lightweight and high-performance material
(Expandable graphite: a new type of lightweight and high-performance material) Expandable graphite was first discovered by German Schaufautl. Ичинде 1841, Schaufautl soaked natural graphite in a mixture of concentrated HNO3 and H2SO4 and, after a…


























































































