Is there any difference between the solar vacuum tube and the other?
If you take a purple tube or three executives and ordinary tubes to compare, you will find that in daily use, there is no difference. But the classification is necessary, because we have to profit, not classified, the introduction of people want better products, how to make a profit? The solar industry is now almost twice as costly as it once was
The purple tube, the three high tube and the ordinary pipe are all similar, originally the ordinary tube has achieved the very high potency, the three high tube and the purple tube are higher than the ordinary, but is too limited
So it's very inappropriate. Now the market is all speculation, you look at the price will know, the small factory three executives and Zijin pipe is so cheap, honest, ordinary tube Tsinghua sunshine are better than those of Zijin pipe is much better, there are a lot of small factory pipe is not qualified, because if qualified to the factory it will affect a large profit. Originally fifteen years of life, let you use a good seven or eight years.
