Set of Hydraulic damper rubber boot for [ Set of Hydraulic damper rubber boot for high speed Pantographs ( Rubber bellow ). Set consisting of 03 items as per Drg. No. B/ TRS/ P4/ Pn. Eqpt/ 4/ 01 Ref nos. 1 to 3 as follows. 1 ) Damper rubber boot ( Bellow ). Qty = 01 No./ set. 2 ) O ring. Qty = 01No./ set. 3 ) Rubber sealing bush. Qty = 01No./ set. Type of material: NEOPRENE RUBBER & Shore hardness A 70 +/- 5. Note: Material will be tested in lab and should strictly confirm to specifications as per drawing. ]