supply of supply of nylon / propylene rope laddersupply of nylon / propylene rope ladder,supply of nylon / propylene rope ladder complete with 1 inch dia. aluminium steps . rope s hould be of 25mm dia. with steps of aluminium alloy corrugated pipe of 25mm x 2.5 mm(temper t6 as pe r is:733- 1983). step width - 410 mm, step gap between - 400mm. aluminium pipe should be duly packed with a pvc cap on both sides. size of ladder - 20 feet long with snap hook of load capacity of 1 ton for ha nging. rope should be fixed with u bolt clamp with dome nuts. material specification and test report shoul d be submitted at the time of supply. [ warranty period: 30 months after the date of delivery ] ] => limited