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PERURI is a State-Owned Enterprise (BUMN) that was established through Government Regulation Number 60 of 1971, [1] the result of a merger between the State Company (a.k.a PN) Pertjetakan Kebajoran (a.k.a Perkeba) which has a banknote printing business, with PN Arta Yasa which has a coin making business.
E-Material, also called E Material, is a metal matrix composite consisting of beryllium matrix with beryllium oxide particles. It has high thermal conductivity (210-230 W/m K), and its thermal expansion can be adjusted to match other materials, e.g. silicon and gallium arsenide chips and various ceramics .