SPARE KIT FOR QUICK EXHAUST VALVE FOR HIGH REACH PANTOGRAPH TYPE WBL85 HR, AS PER M/ S SCHUNK PART NO- 909010017300 EACH SET CONSIST OF 2 ITEMS IN 2 NOS ( 1 NO EACH ) ( 1 ) DIAPHRAGM, QTY- 01 NO. ( 2 ) SPRING, QTY- 01 NO, MAKE- SCHUNK CARBON TECHNOLOGY INDIA PRIVATE. LIMITED