For questions about the origin, history & methods of production of petroleum; e.g. application and development of petroleum based products & other usages, or evolution of petroleum technology in the past, present & future from the ancient Chinese method to today.
For questions about the origin, history & methods of production of petroleum; e.g. application and development of petroleum based products & other usages, or evolution of petroleum technology in the past, present & future from the ancient Chinese method to today.
