:2-3 um1.Material: (57-58)brass body, zine alloy handle,2.Finished: Chrome plated,brass nickled (can do it as customer's request)3.Cartridge: 35mm,  ceramic cartridge (,great wear-resisting and airproof)4.Machined precisely and polished with strict control: 2-3um5.Packing: bubble bag/cloth bag + white box /color box

kitchen faucet