http://www.epa.gov
http://coppercanada.ca
"Brass alloy (60% copper – 40% Zinc) is used abundantly in the taps, pumps, valves and armatures. In the classic brass material there is about 2 – 3% lead.
The next General Assembly of the OECAM (Organisation of European Copper Alloy Ingot Makers) will be held in Istanbul by the organization of Sarbak Metal in 23 - 25 October 2010.
http://www.dunya.com/ya-kursunsuz-ya-olum!_77377_haber.html
3rd IFES2009 (International Foundry and Environment Symposium) Symposium was made on 28-29 January 2009. Sarbak Metal present its presentation about Lead Free Copper Alloys.
