Pines are among the most commercially important tree species valued for their timber and wood pulp throughout the world.
In temperate and tropical regions, they are fast-growing softwoods that will grow in relatively dense stands, their acidic decaying needles inhibiting the sprouting of competing hardwoods.
Commercial pines are grown in plantations for timber that is denser, more resinous, and therefore more durable than spruce (Picea).
Pine wood is widely used in high-value carpentry items such as furniture, window frames, panelling, floors and roofing, and the resin of some species is an important source of turpentine. (source)
So can hamsters eat pine at all, so as to grind their teeth on it to stop them growing?
Yes they can eat pine, as long as it is the kiln-dried white variety. Nothing else.