Kitchen Faucet 1. Copper composition: High Pure Brass 59%. 2. layer: Copper: 7-8um, Ni: Above 10um, Cr: 0.25um. 1. Copper composition: High Pure Brass 59%. 2. Plating layer: Copper: 7-8um, Ni: Above 10um, Cr: 0.25um. 3. Cartridge: Lifetime>500, 000 times for both open and close. 4. Delivery time: 35 days. 5. Payment: 30% Deposite by T/T in Advance, balance By L/C or Pay after see our Copy of B/L. ...