| Being produced by various Building Centres and private entrepreneurs. | |
|---|---|
| Developed by | CBRI, Roorkee |
| Working specification by BMTPC including manufacturing method | BM 04 |
| National standard framed | IIS 1478:1992 |
|
|
| Being produced by various Building Centres and private entrepreneurs. | |
|---|---|
| Developed by | CBRI, Roorkee |
| Working specification by BMTPC including manufacturing method | BM 04 |
| National standard framed | IIS 1478:1992 |
|
|
|