Impregnated Compressed Laminated sheet ( [ Impregnated Compressed Laminated sheet ( Compreg Board- Spec. No. C- 9407, Rev. 03 of feb 07 ), Size: 4 mm thick X 1220 mm x 2440 mm, Type- I, fire retardency clause appendix- 4 of UIC- 564- 2 both side plain RDSO specn. C- 9407, Rev- 03 of feb 07. ]