With reference to mail dated 26th July sent by Teo Chu Laik, we would like to clarify your queries as follows.
1) What is Load -500 Kg & -250 Kg as clouded (Attachment A)  -  Loads are for ladders.
2) All platform design Live Load = 2.5 KN/M2  -  yes  it is 2.5 KN/M2 as given by pfizer
3) The Drawings given by Techno Force are without Dimension. Please Check. - 
Drawings with dimensions are uploaded.