... ,Chrome plating 3.Fine workmanship 4.Factory price High quality copper faucet accessory Product detail: 1.Material: ... plating etc.5.Inspection tooling:Outer micrometer, inside micrometer(machine),digimatic micrometer, internal micrometer, mechanical caliper , vernier caliper ... digital),caliper(machine),caliper(dial),diameter scale, depth micrometer, digital caliper, altitude gauge, electric balance), ...