Biocomposite resin train door launched
http://www.metro-report.com/news/technology/single-view/view/biocomposite-resin-train-door-launched.html
It's a big innovation for railway industries, because how ecology rail systems are has been argued based on how much energy is generated per person or per distance.
We also have to consider how much energy is consumed while manufacturing trains or cars. When it comes to mass production, it's negligible.
In terms of production process, it would be better to use recyclable materials.
