Complex sentence: Kanabō and the other related types were constructed out of heavy wood, or made entirely from iron, with iron spikes or studs on one end, one or both ends of the wooden types could be sheathed in iron or they could be completely sheathed in iron.
Split into simpler sentences: Kanabō and the other related types were constructed out of heavy wood, or made entirely from iron, with iron spikes or studs on one end. One or both ends of the wooden types could be sheathed in iron or they could be completely sheathed in iron.