Description

 Double-side Step ladder Construction - Each step secured with six, large headed, semi-tubular steel rivets for maximum strength. *0% greater shear strength than solid aluminum rivets. Full Channel Fiberglass Rail - Nonconductive full channel rails are covered with a polyester veil for years of durable service when prolonged exposure to the elements is necessary. Reinforced Bottom Back Brace - Heavy duty bottom back brace provides additional strength to the bottom of the ladder. Wide Back Braces - Vertically mounted U-shaped back braces spaced on one foot intervals provide maximum stiffness and discourage unsafe climbing.
Feature: Anti-rust, durable,extention,widely strengthening rung
Used for repairs in local transformer substation overhaul,checking the meters ,family,factory, electric industry and fire protection as uphill tools and so on.
Portable and convenient:can be placed in home car,only very small space needed forstore.
Addvantages:High hardness，good impact resistance,strong carrying capacity and good
widely strengthening rung,extend and locking mechanism,carrying handle and closurestrap