A paragraph of the text from the link I posted:
"Indeed, a whole host of workshops must have grown up around the foundries to satisfy the almost insatiable demand for high quality metalwork. The carriages and limbers are all of Padouk, a form of Burmese teak, and the Rotunda examples even use mother of pearl inlay. The Maharaja was clearly prepared to range far and wide for materials to lavish on his artillery. Smyth also identified two Howitzer patterns as belonging to 'The Orderly Battery of His Late Highness the Maha Rajah Runjeet Sing' [Sic]. Following Mughal and Maratha practice, Ranjit Singh is known to have had 'Artillery of the Stirrup', among his household troops. The walls of Lahore would often shake to thunderous gun salutes at festivals and public events as they had done in the Mughal period."
The type of wood used on the carriages and limbers is actually spelled Padauk, and it is not a form of Burmese (or any other variety of) teak. Padauk is amongst the heaviest, hardest and strongest timber found in Southeast Asia, and the Andaman Islands. There is also Paduak lumber that comes from central and West Africa.
"Physical Properties:Hard, heavy, and strong with exceptional decay resistance and dimensional stability."
"Working Properties:Works well with hand and machine tools. Glues easily and holds nails and screws well. Finishes to a beautiful sheen without the need for stain."
This wood is readily available in the States.