1.Material:Zinc Alloy 2.Finish:Chrome/ Nickel 3.Professional China Lock factory 4.Past ROHS Key Switch Lock Description:1) Materials: ... Zinc Alloy dia cast housing and cylinder.2) Finish: Chrome-plated.3 ... first and treat the customers as supremacy.Power Lock, Switch Lock, Electric Lock,Key Lock,Key Switch Lock, Electronic Lock 2 Function Key Switch ...