TY - CPAPER AU - Teodor Popescu AU - Alexandru-Polifron Chiri a AU - Ana-Maria Carla Popescu AU - Andrei Vlad AU - Alina Iolanda Popescu TI - PUMPING UNIT EQUIPPED WITH OSCILLATING HYDRAULIC PRESSURE INTENSIFIER FOR CYLINDERS WITH SMALL OVERALL SIZES AND LARGE LOADS THROUGHOUT THE STROKE T2 - SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Science and Technologies in Geology, Exploration And Mining PY - 2022 SP - 347 EP - 354 DO - 10.5593/sgem2022/1.1/s03.040 PB - STEF92 Technology ER -