G3 Engineering is a mechanical engineering company based in Nanango G3 Engineering has grown into a one-stop-shop for design, fabrication and installation solutions. Specialising in custom one-offs and innovative manufacturing of fabricated items for all industries, with the ability to integrate a range of carbon and alloyed steels. Our focus is on design, certification, manufacturing and installation of custom fixtures and system upgrades tailored to the client’s specific operational requirements, working closely with the client to meet their expectations with these products.