When solar water heater comes into China
At about 78, 79 years old, Chinese American Tony S. Mr., from the United States took a few full glass tube sample tubes, to study solar Beijing was under construction (the formal establishment of 79 years), caused by the domestic counterparts attention, including Professor Yin Zhiqiang, have seen.
All glass tubes in the beginning of a foreign application, there are U tube. Direct water, not accepted, is still not accepted until now, because the glass absorbs easily.
The whole glass tube is in twentieth Century, the first by the United States Owens (Owens) company developed, not the invention of the Chinese invention of the.
