supply of contact cleaner for electrical & electronics micro contacts for emus & locos. brand: oks-2621/2 or e.c. clenear or valex make jm 501 or equivalent material to supplied in aerosol can of minimum 350 ml to maximum 500 ml in size.contact cleaner for electrical & electronics micro contacts for emus & locos. brand: oks-2621/2 or e.c. clenear or valex make jm 501 or equivalent material to supplied in aerosol can of minimum 350 ml to maximum 500 ml in size.,contact cleaner for electrical & electronics micro contacts for emus & locos. brand: oks-26 21/2 or e.c. clenear or valex make jm 501 or equivalent material to supplied in aerosol can of minimum 35 0 ml to maximum 500 ml in size. [ warranty period: 30 months after the date of delivery ] ]