Manure, i.e., excretion, of earthworms. Earthworm castings are high in nutrients for plants and microorganisms.

manure from red wriggler worms that can be used as a soil conditioner to provide aeration, drainage, and nutrients to soil.

Earthworm feces; the voided earth and other waste materials that are deposited on the surface of the ground. Not all species form their casts above ground.

This is the term used for a new camshaft. Most new cast iron camshafts start life out as a casting not as a billet. Ivan Tighe Engineering have the facilities to make new ones off billet cams for special applications.

metal components

Metal shapes produced from pouring molten metal into a mold and waiting for it to cool and solidify into the desired shape ( http://www.die-castings.net).

A model kit part that was cast from a mold. In garage kits, molds are usually made from RTV rubber and the castings are made in polyurethane resin.