door hanging ironing board cover_anti rat cover washing machine

The round shape of manhole covers arises from a fundamental engineering principle stress distribution. When a load is applied to a round cover, the pressure exerted is distributed evenly across the entire surface area. This characteristic allows round manhole covers to withstand substantial loads—far more than their square or rectangular counterparts, which can create stress concentration points at the corners. Therefore, round covers are often more durable and require less frequent replacement, leading to cost savings for municipalities.

One of the significant advantages of a pedal-type dustbin is its hygiene aspect. Traditional bins require users to touch the lid, which can transfer bacteria and odors to hands. In contrast, the foot-pedal mechanism allows users to open the bin without physical contact, reducing the spread of germs and promoting a cleaner environment. This feature is particularly beneficial in kitchens and bathrooms, where hygiene is essential.