Fifteen years ago, China began to enter the photovoltaic field at this time. At that time, more than 80% or 90% of the polysilicon core materials used by people came from Germans, Americans and Japanese. At that time, we
said that the three ends were outside and the two ends were outside, which meant that the core material was outside and the core technology was outside.
However, as soon as China caught up, the annual output increased from 1,000 tons to 2,000 tons and 10,000 tons, realizing 5 nines (99.999%), 6 nines (99.9999%) and 12 nines (99.99% 9999999999) at that time. This is equivalent to 100 to 1,000 eggs for each person in the country. If there is no duck egg, the purity should be so high.
Comprehensive transcendence is not an accident, not a coincidence, but a real advanced manufacturing capability
of human beings in these fields so far.
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