Tender For Supply & Installation Of Aluminum Extendable Tiltable Tower Ladder The ladder shall be made of Aluminium Alloy “C” section 66 X 32 X 3.18 mm thick. HE 30 GRADE T6 temper. The steps shall be made up of non-aluminum alloy Corrugated fluted pipe 26mm dia Thick 3 mm Every Steps shall be an interval of 12” for easy climbing and the ladder can have a single Sliding movement. Both sides the pipe end shall be covered with plastic caps to avoid insects going in. Platform to be provided 3 feet below from the ladder total height, Platform top sheet made out of aluminum chequered sheet of 2mm thick Height shall be extendable from 20ft to 36 ft Base Trolley size shall be: 5 ft x 6 ft In winch mechanism ratchet pin and lock arrangement shall be provided to avoid reversing.
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