New DFC-F product promoting

With the sales and promotion of dfc-d series products, as well as the feedback and demand collection of some customers, on the basis of dfc-d series products, through changing the previous modeling design, repeated testing and verification, we specially launch the new dfc-f series, with the same functions, but smaller design and more flexible operation. Once this product is promoted, it is highly praised by the majority of customers. With the increase of demand, this product will be as popular as the previous one.