supply of aluminum straight ladder height 8mtrs with hook on top. , aluminum straight ladder height 8mtrs with hook on top. 1.aluminum straight ladder with hook made of al. section (c- 66.67 x 31.75x3.18mm ) with phase corrugated pipe diameter, 25.4mm distance of phase 305mm with rubber shoes on top and bottom. length 8 m (in one piece without joints). oe m tc gc required. 2.following document submitted by supplier at time of supply of material: - (1) manufacturer material internal / routine test certificate. (2) calibration certificates of measuring instrument and gauges. (3)guarantee certificate as per irs condition. warranty period: 30 month(s) from the date of sup ply. [ warranty period: 30 months after the date of delivery ] ]