... 1)Nickel lead free 2)Pass factory audti from TCCC 3)18 years experience 4)10 years after-sale service Laser engraving cool ... , 35mm, 40mm, 45mm, etc. All size is welcome.LogoSoft enamel, laser engraving, offset printing, etc. Customize logo.BackFlat, sand blasting or ... /UPS/EMS/FEDEX/FOB, etc.Manufacture partner of CoCa CoLa Laser engraving cool brass metal stamp tag