Solar PV is very basic thing, Chinese PV are cheaper. India manufactures PV cells but WTO is forcing India to buy Chinese.
https://www.pv-magazine.com/2016/09...appeal-at-world-trade-organization_100026144/https://www.pv-magazine.com/2016/09...appeal-at-world-trade-organization_100026144/
Tunnel boring machines are also made in India, Infact India made 19 of them just for Delhi metro. TBM is not something very High tech...
http://www.business-standard.com/ar...or-tunnel-boring-machines-109031800165_1.html
Again China will work 10 times harder and sacrifice and sell 2 times cheaper to sell this large TBM to India. We are using your ego to be laborer of the world.
Let me give you some food for thought: Chinese supercomputers are also just lot of effort not talent. To make the fastest supercomputer you need the largest number of Semiconductor Chips. China has lots of loss making Semiconductor fabs, These fabs outputs are just used to make lots of supercomputer chips.
Now something about High speed rail...
Why China’s bid to sell high-speed rail technology overseas is losing steam
http://www.scmp.com/news/china/dipl...-bid-sell-high-speed-rail-technology-overseas
Air travel costs are almost 1/3 to 2/3 of second class bullet train ticket, and bullet train takes 3 times more time than air travel. maintaining and saving long distance high speed rail from threats like terrorists is more difficult.
http://www.thehindu.com/news/international/China-launches-longest-bullet-train/article16993400.ece