| • pressure maintaining valve | |
| दाब: pressure stress weight pressing druck impression | |
| वाल्व: stopcock valve finger hole | |
दाब पोषी वाल्व अंग्रेज़ी में
[ dab posi valva ]
| • pressure maintaining valve | |
| दाब: pressure stress weight pressing druck impression | |
| वाल्व: stopcock valve finger hole | |
