During a fire emergency, fire extinguishers are among the most common and convenient tools for fire suppression. Dry powder fire extinguishers, in particular, are widely used due to their broad applicability and rapid firefighting effects. However, in certain specific fire scenarios, dry powder extinguishers may prove ineffective or even pose secondary hazards. Using LESSO dry powder fire extinguishers as an example, this article provides a detailed explanation of the types of fires they are not suitable for, helping users make informed decisions in different fire situations.

Stainless steel faucets come in diverse models, each suited for specific applications. Common household sizes include: 4分 (15mm) / 6分 (20mm). Refers to outlet diameter (Imperial to metric conversion).

Flange check valves are essential components in pipeline systems, designed to prevent medium backflow. Proper installation and maintenance are critical for optimal performance. Below are key technical points.

A vertical urinal is a piece of furniture installed on the wall of a bathroom, mainly for men to use. Using a vertical urinal can save a certain amount of space. Its purpose is to advocate the concept of environmental protection and water conservation. Here, we will introduce the installation steps of a vertical urinal for you.

Telephone lines are widely used in communication services and can be seen everywhere in our daily lives. To purchase a suitable telephone line, we need to know its common models and uses. The common models of telephone lines include two-core and four-core ones. Generally, two-core telephone lines are used for home telephones.

Fireproof rolling shutters are usually installed at the openings or apertures of buildings, such as door openings and window openings.

Sealant is a kind of sealing material that deforms according to the shape of the sealing surface, is not easy to flow and has a certain degree of tightness.

The faucet is a product that we use almost every day, playing a significant and indispensable role in our daily lives. To ensure a long service life of the faucet, there are certain requirements for the connection of the hose. Firstly, the hose and the faucet need to be compatible, such as in terms of material and size.