The walkway platform checked plate had seriously deformed, while the effect of the correction was not valid, please deal with the problem in time.
Advise: 1. when fitting them up, please use the pretreated entire plate to reduce the deformation in a certain place.
2. If using the steel plate without pretreatment, speed up appropriately when shot blasting. Do not shot too much in a place, which lead to a potiential deformation.
The original sentence you provided has too many grammatical errors. I have rearranged it and the original technical terms have not changed.
(English major level 8) Xia An, I hope you will adopt it, dear!