providing and installation of water ro purifier office chair office table plastic chairs to pre-general girls hostel of backward class welfare department - office table primary material action tesa engineered wood (pre laminated particle board),plastic outdoor chair a plastic chair,office chair 2 inch thick foam cushion padded seat pneumatic hydraulic with 3 inch seat height adjustment breathable contoured mesh back fabric chair,water purification plants providing, installation and commissioning of automatic water purification plant rouf with all accessories uniform sr volume 05 item no 21.1 page no 247 150lph cabin type