promotional crafts wine bottle opener zinc alloy keychains keyring 1.own factory, 12 years 2 OEM welcomed ... souvenir beer glass print logo metal keychains keyring keyholder Materialzinc alloy, or iron, stainless steel, brass, etcSizecustomizelogo print logo or ... , and in a cost-effective manner. 3). Crafts available ProcessDie Cast PlatingVarious plating by order, gold, Nickel, brass, copper, Silver, ...