supply procurement of different sizes of self supporting type and wall supporting type fibre ladder at 132 kv substation sultanpur road, lucknow under etd ii, lucknow , following items are to be procured for use at 132 k.v. sub station sultanpur road (awas vikas) under e.t.d. - ii, lucknow : , fiber glass self supporting platform (stool) type ladder of height 24 feet duly fitted with hinge and steps of fiber glass tube covered aluminium pipe. , fiber glass wall supporting extension ladder (fire brigade type) of extended height 36 feet and closed height 20 feet with steps of fiber glass tube covered aluminium pipe and heavy duty safety lock, pulley, rope etc. , fiber glass wall supporting ladder of 20 feet height with steps of fiber glass tube covered aluminium pipe.