3D printing for others; custom 3D printing; 3D printing of transportable buildings; 3D metal printing; wire Arc Additive Manufacturing metal 3D printing; custom manufacture of transportable buildings; custom manufacture of modular components for modular buildings; assembly services relating to transportable buildings; assembly services relating to modular buildings; information relating to all of the aforesaid namely, treatment of materials, air and water, 3D printing and manufacture and asse...