| SI.N | Code book used (Description) | IS Code number |
|---|---|---|
| 356 | collapsible gates | IS 10521:1983 |
| 351 | Code of Practice for Selection, Installation and Maintenance of Timber Doors and Windows | IS 4913:1968 |
| 339 | Code of practice for fixing and glazing of metal (steel and aluminium) doors, windows and ventilators | IS 1081:1960 |
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