What is the difference between solar Zijin pipe and three high tube?
Water tank insulation is not polyurethane foam. Must buy polyurethane foam. Such a good insulation. There is a liner to SUS304-2B. The vacuum tube is not falling off. Basically these. There is to look at the strength of agents, because the sale of solar water heaters are agents do. If you do not have the strength, the ability to resist risks on the small, if the business is not good, the sale of more trouble. Understand again
You have to understand it in fact almost just a deposit not to engage in brand manufacturers too much inferior on the matter so much but you have to learn to distinguish. Look at the bracket, the first bracket to be solid, followed by his work is not fine, is not galvanized plate, aluminum alloy, ordinary steel plate do not use, because it will rust.
A person's 2009-06-16 13:25 in solar technology has been very mature in China mainly depends on 2 solar dealers may also sell a hundred units sold many brands that is mainly good conscience conscience you dealers with good and.
