Dear customers：
Thanks for the trust and support of our products!
The technical formula provided by Hengkai College on our website is constantly updated. The technical formula in Hengkai College is only for learning and communication, and is only for suggestions. The formula is only for reference. The company does not assume any responsibility. The specific formula is based on the product price, climate, proportion, environment and raw materials sold in different regions, and the formula proportion of the company is adjusted according to the different conditions of the company. Our company does not provide any responsibility and guarantee for the formula.
Hereby declare!