we offer single handle basin faucet m11155-048cmaterial. brass main body and zinc alloy handlebrass content:57-60%cartridgeceramic cartridge, kcg and sedal are availablesurface treatmentchrome-plated, other plating available, including brush nickel, red bronze, antique brass, etc.thickness of chrome platingnickel: 5-8um chrome: 0.1-0.3umwater pressure testing0.6-0.8mpaair pressure testing0.6-0.8mpacartridge life time500, 000 cyclesquality guarantee5 years quality guaranteewater flowwash basin faucet: 12 lmin bath&shower faucet: 20lmin