procurement of hydro pneumatic loading cylinder for 8.5 e 9 coal mills for unit no. 1 to 4, at sgtps, mppgcl, birsinghpur , description as per schedule , complete hydro pneumatic loading cylinder along with two sets of seal kit, bellows, jubilee clamp, grease nipple & self aligned bush bearing for 8.5 e-9 abl abb make coal mills of unit no. 1 & 2at ph-i , sgtps, mppgcl, birsinghpur. specification:- 6” bore x 5-1/2 dia piston rod x 14” stroke working pressure oil of 49 kg/cm2 working pressure of nitrogen gas 36.5 kg/cm2 chrome plating thickness of 50 microns and above on piston ram (as per drawing/sample) working cylinder make:-vipj, eepl or equivalent make of iso standard . , complete hydro pneumatic loading cylinder along with two sets of seal kit, bellows, jubilee clamp, grease nipple & self aligned bush bearing for 8.5 e-9 abl abb make coal mills of unit no. 3 & 4at ph- ii, sgtps, mppgcl, birsinghpur. specification:- 6” bore x 5-1/2 dia piston rod x 14” stroke working pressure oil of 49 kg/cm2 working pressure of nitrogen gas 36.5 kg/cm2 chrome plating thickness of 50 microns and above on piston ram (as per drawing/sample) working cylinder make:- veljan, vipj, eeplor equivalent make of iso standard.