Complex sentence: As well as an export timber source, the wood is graded as first (highest) category in Cambodia, it is a very hard timber and is used to make columns, bridges, sleepers and in various other construction purposes.
Split into simpler sentences: As well as an export timber source, the wood is graded as first (highest) category in Cambodia. It is a very hard timber and is used to make columns, bridges, sleepers, and for other various construction purposes.