Ladder is a kind of daily life tools, to assist us to complete the work at height. The first ladder is made of wood and bamboo, with two long and thick poles as the side, and the middle of which is suitable for climbing. Up to now, a variety of materials and styles have evolved. From the perspective of materials, they mainly include aluminum alloy, stainless steel, glass fiber reinforced plastic, iron, bamboo, wood, etc. from the style, they can be divided into straight ladder, herringbone ladder, telescopic ladder, dual-purpose ladder, single side ladder, double-sided ladder, multi-functional ladder, car washing stand, shelf ladder, etc.
There are many scenarios for using ladders, such as daily household cleaning, hanging curtains, changing light bulbs, repairing and repairing outside the house Ladders are often used in engineering, such as outdoor construction, advertising decoration, building cleaning, power repair and other lifting operations. A safe, stable, convenient, load-bearing and no space occupation ladder should have so many uses. The wisdom of human beings is unimaginable!
So much said, the ladder actually means “step up, safe up and down”. When the housewarming comedy, the host takes the ladder into the new house, which means step by step, safe up and down, good luck. In addition, we will also say that those who have risen step by step and have a bright future are climbing the “green cloud ladder”.