ex: metal coat multiply 1.2 on steel type moves
Black Belt 20% Black Glasses 20% Bug Gem 50% Charcoal 20% Dark Gem 50% Dragon Fang 20% Dragon Gem 50% Draco Plate 20% Dread Plate 20% Earth Plate20% Electric Gem 50% Fighting Gem 50% Fire Gem 50% Fist Plate 20% Flame Plate 20% Flying Gem 50% Ghost Gem 50% Grass Gem 50% Ground Gem 50% Hard Stone 20% Ice Gem 50% Icicle Plate 20% Insect Plate 20% Iron Plate 20% Magnet 20% Meadow Plate 20% Metal Coat 20% Mind Plate 20% Miracle Seed 20% Mystic Water 20% NeverMeltIce 20% Normal Gem 50% Posion Barb 20% Posion Gem 50% Psychic Gem 50% Rock Gem 50% Sharp Beak 20% Silk Scarf 20% Siver Powder 20% Sky Plate 20% Soft Sand 20% Spell Tag 20% Splash Plate 20% Spooky Plate 20% Steel Gem 50% Stone Plate 20% Toxic Plate 20% Twisted Spoon 20% Water Gem 50% Zap Plate 20% http://bulbapedia.bulbagarden.net/wiki/Type-enhancing_item
