procurement of spares for lp bypass hydraulic drive system of make welland and tuxhorn for aoh of unit no. 10 of ph-iv, stps, sarni procurement of spares for lp bypass hydraulic drive system of make welland and tuxhorn for aoh of unit no. 10 of ph-iv, stps, sarni , spares parts for hydraulic drive system nbf 630 cnr ( 900 ) hydraulic diagram no. h-c-31525a-900-630 , high pressure filter element for filter pos.5 ( 01002833 ) / 500 / 1 , low pressure filter element for pos.17 and 64 ( 01002831 ) / 500 / 8 , oil regenerating filter element type et 718-dr-crn for pos. 65 ( 01040113 ) / 500 / 9 , hp hydraulic hose dn 10 x 550 mm ( s09201 ) / 500 / 15 , hp hydraulic hose dn 20 x 1500 mm ( s09203 ) / 500 / 16 , hp hydraulic hose for oil cooler ( s09205 ) / 500 / 17 , oil regenerating filter element type pd 718-dr-crn for pos. 65 ( 01040114 ) / 500 / 10