| 000 | 00470nam a22001457a 4500 | ||
|---|---|---|---|
| 999 |
_c11776 _d11776 |
||
| 008 | 210108b ||||| |||| 00| 0 eng d | ||
| 082 | 0 | 0 |
_a621.61 _bI81 |
| 110 |
_92641 _aIndian Standard Institution |
||
| 245 | 1 | 0 |
_aIndian standard dimensions for mushroom ventilators with fixed head - welded type _cBy Indian Standard Institution |
| 260 |
_aNew Delhi _bIndian Standard Institution _c1966 |
||
| 300 | _a5 p. | ||
| 365 | _d1.00 | ||
| 650 | 0 | _aIndian Standard | |
| 942 | _cBK | ||