TEXT OF THE PURCHASE ORDER, SPECIFIC PART; NOMENCLATURE: SPHERE; TYPE: RETENTION; MATERIAL: RUBBER+STEEL; FINISHING: UNFINISHED; APPLICATION: PUMP; MANUFACTURER: JOSEF EMMERICH; REFERENCE: 861101;, , TECHNICAL SPECIFICATION, BALL OF THE SUCTION AND BOOST VALVES OF THE PISTON PUMP PISTON DIAPHRAGM JOSEF EMMERICH SP528S. ITEM 522 OF THE PARTS LIST. PUMPS, OF THE MUD TANK OF THE FILTER PRESS OF THE WATER RECIRCULATION OF THE LCG