supply of different type of material for transformers-double paper covered aluminium winding wire with fine covering confirming to iss-6162 part, i, 1971 in sizes 1.71 to 1.73 mm dia suitable for ht leg coils of 16 kva t/fs 2 solid press board for electrical purpose type d confirming to i.s.s. 1576/1967 or standard quality in size 1 mm 3 solid press board for electrical purpose type d confirming to i.s.s. 1576/1967 or standard quality in size 2 mm 4 empire sleeves best quality 1 mtr long in size 4 mm 5 empire sleeves best quality 1 mtr long in size 6 mm 6 empire sleeves best quality 1 mtr long in size 2 mm 7 empire sleeves best quality 1 mtr long in size 10 mm