supply of 1) mirror-lh for lhb coaches2) mirror- rh for lhb coaches3) mirror without frame, size: 406 x 254 x 5.5 mm with two railway monogram on opposite corner , mirror without frame, size: 406 x 254 x 5.5 mm with two railway monogram on opposite cor ner, to drawing / specification monogram to rdso/sk-68060, alt.2 and mirror to grc/c-186, alt. no. 6 , ite m no - 1. make : any [ warranty period: 30 months after the date of delivery ] ] , mirror- rh for lhb coaches, to drawing / specification lw 63181, alt-b make: any [ warran y period: 30 months after the date of delivery ] ] , mirror-lh for lhb coaches, to drawing / specification lw63197,alt-a make:any [ warranty period: 30 months after the date of delivery ] ]