Your so called "industry" which is actually EXPORT FACTORIES can be taken down.There are many ghost towns already and no takers.
The so called export factories can be shifted to other APAC countries and actually happening due to
growing arrogance of Han Chinese since they threaten almost all of it's neighbors daily.
You still didn't answer what Japan and Vietnam can do to you, leave alone India...
LEARN CHINESE HISTORY. 
1. Export is just 26% of China's GDP.
Exports of goods and services (% of GDP) | Data | Table
2. Japan's industrial strength is about 10 times of China in 1937. ( Thanks to UK and US make it a representative in Asia to keep China and Russia in check)
Not mention that US keep supply oil and steel to Japan until 1941 , stopped because of Japan signed Soviet–Japanese Neutrality Pact ( April 13, 1941).
"One should keep in mind that it was in fact Japan, not China, that had benefited from these countries' support.
Japan's primary source of raw materials like petroleum and scrap iron for its war in China, and of high-end technology like machine tools was the United States. In 1938 the United States (57.1 per cent), the United Kingdom and its empire (Malaya, Canada, India, Australia, 20.7 per cent), and the Dutch and Dutch East Indies (8.6 per cent) supplied
86.4 per cent of Japan's imported war materials. The United States produced 60% of the world's oil; the Dutch East Indies less than 10%;
55% of Japan's oil came from the United States, 14% from the Soviet Union, and 10% from the Dutch Indies. I have a photograph of a dinner party held on December 7, 1939, at the Duquesne Club in Pittsburgh, at which George T. Ladd, Chairman of United Engineering Foundry Company, entertained Colonel S. Atsumi of the Imperial Japanese Army and his entourage. UEF had built a factory to produce rolling mill machinery in Japan in 1938."
http://www.japanfocus.org/-Richard_J_-Smethurst/3825
3. Vietnam lost most of its industrial base and mines during the China - Vietnam war, and it still one of the most poorest country in Asia( better than India).
(Vietnam located most of its firms in Chinese-vietnamese border to avoid US bombing.)
