... aluminum or zinc alloy 3.Offer lock accessory 4.Custom-made lock mould and parts Offer custom-made service about lock and other lock partsFingerprint lock ... Single / Multicavity.Material PC,PP,ABS ,HDPE,Steel,Aluminum,SPCC etc.Surface Treatment Glaze/Spray paint/Electroplating/Dermatoglyph/Deburring ... specifications4.Surface treatment5.Quantity Digital fingerprint electronic lock access control,door ...