... quality 3.Salt spray test 4.OEM accept Zinc Alloy Faucet Handle:1.Precise and efficient die design, advanced casting & machining ... 59-1, H62, H63, C3600,……Aluminum:6061-T651, 6063-T6, 2011-T3, ……Stainless Steel: 303, 304, 316, ……Other materialsSurface TreatmentHeat treatmentPlating ... .AnodizingChemical Film / Conversion CoatingOther Finish as Customer’s Requirement Zinc Basin Mixer Tap Faucet Handle