It is a type of wood that is used to reinforce the top of mine in Bolivia
CALLAPA: CONTRIBUTION OF CERTAIN NUMBER OF PEOPLE TO CONTRIBUTE TO PRODUCTIVE WORK IN A WAY MORE QUICKLY
Callapa-is a village in the Department of Moquegua in Peru this name is a derivative of the phrase kech-hua ghall-lla-pa which means the peeling of the poor. In the diminutive form.