China has huge manufacturing output, but we need to see how much of that is devoted to actual weapons production. Actually very little.
China produces 30 million cars per year but barely produces 100 tanks. China's total Jet fighter production is like 150 per year. Again a very small number compared to its huge production of millions of chips, machinery, civillian ships, components and so on.
That's why I have been saying how China needs to increase its military budget to boost up the numbers produced per year. Current production per year is proportional to the low GDP % (1.5) China is spending on the military.
When you compare China's spending on infrastructure and how much roads, Bridges, rail China constructs or how much civillian vehicles, machines and other stuff they make, it becomes obvious that China is indeed producing very low numbers of weaponry compared to its potential.