ItemStack chestplatelvl1 = setName(new ItemStack(Material.CHAINMAIL_CHESTPLATE),ChatColor.YELLOW + "Chestplate" + ChatColor.GRAY +" LVL 1");
chestplatelvl1.addEnchantment(Enchantment.PROTECTION_ENVIRONMENTAL, 1);
chestplatelvl1.addUnsafeEnchantment(Enchantment.ARROW_INFINITE, 1);

ItemStack chestplatelvl2 = setName(new ItemStack(Material.CHAINMAIL_CHESTPLATE),ChatColor.YELLOW + "Chestplate" + ChatColor.GRAY +" LVL 2");
chestplatelvl2.addEnchantment(Enchantment.PROTECTION_ENVIRONMENTAL, 2);
chestplatelvl2.addUnsafeEnchantment(Enchantment.ARROW_INFINITE, 1);

ItemStack chestplatelvl3 = setName(new ItemStack(Material.CHAINMAIL_CHESTPLATE),ChatColor.YELLOW + "Chestplate" + ChatColor.GRAY +" LVL 3");
chestplatelvl3.addEnchantment(Enchantment.PROTECTION_ENVIRONMENTAL, 3);
chestplatelvl3.addUnsafeEnchantment(Enchantment.ARROW_INFINITE, 1);

this.villager_armor_orange = new VillagerTradeOffer[]{

new VillagerTradeOffer(kupfer1,helmet_orange),
new VillagerTradeOffer(kupfer1,leggings_orange),
new VillagerTradeOffer(kupfer1,boots_orange),
new VillagerTradeOffer(eisen1,chestplatelvl1),
new VillagerTradeOffer(eisen3,chestplatelvl2),
new VillagerTradeOffer(eisen7,chestplatelvl3)
};