supply of pantograph assembly complete for high speed ac locos with motor assembly, mechanism asse mbly, throttle vale assembly and fitted with metalized carbon strips as per rdso drg. no. skel-4303 ( rev-6 ) ( without panto mounting insulators ) as per clw specification no.clw / es / p-5, alt.f metallized carbon strips sh ould be of rdso approved makes only viz., m / s. acpl, guwahati ( grade-my7d ) , m / s.mersen india ( carbone lorraine ) / bangalore ( grade-p5696 ) or m / s.schunk metal, bangalore ( grade-bh 424 c1 ) confirming to rdso technical circular no.elrs / tc / 0071 / 2001 ( rev %u20180%u2019 ) [ warranty period: 30 months after the dat e of delivery ] electric loco shed / bza, scr andhra pradesh 4.00 set