Weapons, tools, back equipment and face equipment can be enchanted with curse of vanishing, mending and unbreaking.

Mending can be used to recharge the following items:

• Jetpack
• Jumppack
• Anti Gravity Device
• Oxigen Tanks
• Nightvision Goggles
• Tactical mask
  It doesn't appear to do anything on weapons and on tools.

Unbreaking gives a chance to not consume ammo/fuel/air/battery/etc; doesn't really make a lot of sense, but it could be intentional.

Another thing that could be intentional is that all the armors can be enchanted; I thought it was worth mentioning.

Enchant on weapons are most useless now, Beside... most weapons didn't required to be enchanted since some gun's damage was high enough...

All enchants on armor works normally, (Especially mending, Who doesn't like auto-repairing ability) but you can't enchanted directly on the enchant table, Can only applied via anvil...