... ,decal decor6,electro-plated(vacuum galvanization)decoration on caps(Plastic or Aluminium cap)1,electro-plated(vacuum galvanization)2, ... natural material but with color3,silkscreen printing on caps4,curved or foiled logos ... or half metal sprayer)1,full metal sprayer(ferrule with metal actuator)2,ferrule with plastic atuator(cheaper than metal actuator)