Significados de primary raw material en inglés

The Company also produces needle coke products, which are the primary raw material needed in the manufacture of graphite electrodes.

Trichlorosilane is a key chemical used in the manufacturing of polysilicon, the primary raw material for making most solar photovoltaic cells.

The Company's primary raw materials used include hard maple, soft maple, oak, cherry, and hickory lumber and plywood.

Somehow, we need to find ways of extracting less primary raw materials (minerals, fossils and metals) and reusing the ones we've already extracted.