Tender For tender for supply of brake shoe holder for locomotives d d ? g? g - brake shoe holder , tip contact assembly for main finger contact , ammeter round 0 to 50 a ctr 50 , voltmeter round 0 to 400 v , forward reverse base contact 168 v 300 a , finger contact base 168 v 300 a , 3 phase on off rotary switch 63 a , brass stud with bushing