... standard as UL, and obtained ISO9001 approval certificate.High quality bottle opener keychainMaterials: Aluminium,Alloy,Zinc,Laser.Plating: gold, silver ... brushed brassanti-(gold,silver,copper, bronze) Processing: stamped brass and iron, die casting, spin casting, photo etching, printing, laser engraving ... a joyable and fruitful business relationship with companies worldwide! Bottle opener key chain