The load in 12142-2007 can be divided into four files, namely 90KG, 100KG, 110KG, 135KG, and the safety load of qualified aluminum ladder should be more than 2.5 times of the mark.

​Aluminum ladders have a very critical effect on people's daily life and work. There is a safety ladder called aluminum ladder. Aluminum ladders play a very important role in our lives.

With the development of the times, the tools we use every day are also improving, and the same is true of ladders, from the previous wooden ladder to the current aluminum ladder, folding ladder, etc., and shopping has also changed to online shopping with the development of the times.

​Ladders are used more in daily life. If you want to go to a higher place, you can use a ladder. Ladders are needed to clean dust or decoration on the top of the room. Use ladders to choose safe and reliable, and to ensure people's safety.

The folding aluminum ladder is easier to open and store, and it is very convenient to use. Aluminum ladders are representative of the tools we use every day.

​The use of iron for aluminum ladders is representative of the more common materials. The outer layer will be protected by painting, which takes into account the rust-proof, waterproof and sturdy use of the ladder.

​Insulation ladders are mostly used for special climbing tools in power engineering, telecommunications engineering, electrical engineering, hydropower engineering and so on.

The material is epoxy resin combined with pin technology. The surface of the shaft steel parts has a protective coating; the processing surface of the insulating laminate material parts is treated with insulating paint .

​FRP, also known as epoxy resin, is an insulating material with high hardness and high insulation performance. Electron band theory states that electrons in solids are only allowed to exist in certain energy states, and these energy states can form separate energy bands.

At normal temperature, semiconductors have a certain electrical conductance due to the small energy gap and the formation of electron-hole pairs by thermal excitation.