Posted by
Zhongxin Ladder on Wednesday, June 17, 2009 11:37:38 PM
To most people, ladders may seem
like a simple object with a basic intended use – you go up them, you come down
them. But what many don’t realize is that nowadays, each ladder available
on the market is specifically designed for a certain type of job or
function.
For example, platform
ladders are ideal for do-it-yourselfers as they feature a
platform to rest tools and equipment on, whereas double
sided step ladders are designed for construction or home
work.
Step Ladders have been
around in some from or other since the beginning of time.Before the 20 th century, ladders were mainly made of wood, but
obvious problems came in the form of rotting and decay, as well as conductivity
while wet. While wood is still used to construct various types of ladders such
as attic and loft ladders, it is rarely used for ladders that are destined for
outdoor work.
But modern innovation has make them evolve into highly practical tools for
use around the home and also in industry.
Aluminum
ladders became the next big thing to hit. These are extremely
strong and weather-resistant and can take the hard workout that often comes with
commercial use. But with these great benefits came two downsides – aluminum
conducts electricity, making it unsuitable for electrical work, and it also
buckles and becomes unusable after it has been exposed to heat.
Fiberglass
ladders are the current darling of the ladder industry. They
possess all the finest qualities in one product, making them ideal for most
kinds of work. They don’t conduct electricity; are lightweight; and are
sturdy.
From:http://www.ladder-supplier.com/news/index.html