When switching the product development does not sufficiently consider the conditions for field assembly meets the technical requirements of the product, resulting in the sealing strip not stick
Research and development in the switching of products without full consideration of whether the field assembly conditions meet the technical requirements of the product, resulting in seals can not be adhered to
The R & D did not fully consider whether the site assembly conditions meet the product technical requirements when switching products, resulting in the sealing strip not sticking