supply of aluminium alloy wall support extention ladderaluminium alloy wall support extention ladder,aluminium alloy wall support extention ladder close ht 24 feet extended ht 45 feet made of high tensile aluminium alloy c section 66 x 32 x 3.16 mm thickness of ohe 30 grade t6 temper of hindalco make steel made of no slip al. alloy corruga ted flutted pipe of 28 x 3mm dia steps to be riveted at top 305 mm interval extendable another locking rubber shoes at the bottom safety top hooks safety hand rails an d additional ms guide pipe mixed inside the ladder at 1 mtr interval for stability of l adder. [ warranty period: 30 months after the date of delivery ]