What is the price of Zhengzhou besides formaldehyde?

The charge of in addition to formaldehyde in Zhengzhou is generally around 15 yuan -65 yuan/square meter, which refers to family in addition to formaldehyde. If it is a project in in addition to formaldehyde, the price is lower than at home. The reason why the fees vary greatly is that different imperial examinations have different choices. For example, if customers choose a regular in addition to formaldehyde company, the fees will be higher, but the effect will be better. For example, if you choose an individual, the fee will be relatively reduced. At the same time, the prices of different products selected by testing companies will be different. For example, all companies will use photocatalyst products, some more than ten yuan/liter, some hundreds of yuan/liter; Finally, the construction technology and after-sales service in in addition to formaldehyde are different, and the cost will be different. This is because the threshold of this industry is low. Some practitioners may be guerrillas, leaving with one shot, and some provide perfect after-sales service, and the natural cost will be different for different services.