supply of contact cleaner for electrical & electro [contact cleaner for electrical & electronics micro contacts for emu s & locos.contact cleaner for electrical & electro [contact cleaner for electrical & electronics micro contacts for emu s & locos.,contact cleaner for electrical & electronics micro contacts for emus & locos. brand: o ks-2621/2 or e.c. clenear or valex make jm 501 or equivalent.in 500 ml aerosol can. material may als o be supplied in aerosol can of suitable volume equivalent to processed quantity. specification: bran d: oks 2621/2 or e.c. clenear or valex make jm 501 or equivalent. specn: brand: oks-2621/2 or e.c. c lenear or valex make jm 501 [ warranty period: 30 months after the date of delivery ] ]