| Being used for sloping roofs in hilly areas. | |
|---|---|
| Developed by | |
| Working specification by BMTPC including manufacturing method | BM 05 |
| National standard framed | |
|
|
| Being used for sloping roofs in hilly areas. | |
|---|---|
| Developed by | |
| Working specification by BMTPC including manufacturing method | BM 05 |
| National standard framed | |
|
|
|