Tian had a lance with a wood core and a stone tip inside the papyrus.
There have been continued experiments with aluminum, composite honeycomb, foam and resin to change, or substitute, the standard wood core.
In the sixties, Kneissl developed the first plastic skis featuring a wood core.
Air channels integrated into the fiberglass wood core save weight over a pure wood core.
The head of the stick can be constructed from a number of different materials, though felt wrapped around a wood core is the most common.
"The limbs are fiberglass on a wood core?"
The primary sculptural material, which looks like a cross between stone and concrete, is a papier-mache of newsprint molded over a wood core.
Fibreglass, carbon fibre and kevlar were first applied to the traditional wood core in early 1970s.
The avoidance of wood cores extends to the deck, which is also solid fiberglass.
Last summer, he and his father selected one tree to provide the wood core of Raich's race skis.