Ordinary board as TV panels generally made of copper, tin and aluminum, computer board mobile phone board to extract gold platinum silver and other precious metals. Circuit board: copper up, the circuit board is a thin copper (multilayer more), then the tin solder, electronic components, the most least, gold (gold plate, only the plating on the surface layer of the line) . A printed wiring board composed mainly of three basic components: an insulating substrate, a conductive circuit and installation components. Type of complex printed circuit boards how much a pound of copper recycling, species diversity, and material composition of the content of the various components of the circuit board is also a great difference. Circuit boards usually contain 30% of the cost of recycling plastic wire copper, 30% and 40% of an inert metal oxide. CHO polymer component mainly composed of plastic, halide and a nitrogen-containing polymer; the main component is an inert oxide silicic acid, alumina, and alkaline oxide; plus minor amounts of other oxides and carbonates. Silvered recovery range: silver electrode, scrap silver electrode, silver, silver water, silver, silver contacts, rub silver cloth, silver, silver nitrate, conductive silver paste, silver chloride, silver, gold-plated rack, silver slag, gold paste, silver paste, silver and oil, silver pieces, membrane switch, varistors copper price recovery, wiping cotton gold, gold-plated circuit boards, silver iodide, silver chloride, silver sulfide, silver oxide, electrolytic silver pieces, ceramics and silver piece, electrolytic silver pieces, rub silver cloth, silver nitrate, silver conductive oil, membrane switches, varistors, silver wire, silver solder ring, silver palladium paste, paste pot, conductive silver cloth, silver version copper recovery, 925 silver , grinding powder, polishing powder, chip resistors, silver scrap, silver tiles, buzzer, scrap silver, silver cleaning cloth (cotton), waste silver cans, silver conductive paint and other copper recycling prices _ yellow Jiangxi Copper recovery _ East in mind renewable resources by Dongguan Chang Ping Tung Kee provide renewable resource recycling. Dongguan Chang Ping Tung Kee renewable resource recycling (www.dongji8.com) strong, credible, in Dongguan, Guangdong scrap recycling industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the East in mind renewable resources into the brilliant and you work for a better future!