Fipronil is a phenylpyrazole insecticide with a wide spectrum of insecticides . It is mainly used for stomach poisoning. It has both contact and certain systemic action. Its mechanism of action is to hinder insect γ-aminobutyric acid. Control.......

A truck crane is a crane that mounts a lifting work part on a general-purpose or special-purpose vehicle chassis and has the driving performance of a truck. In order to meet the driving requirements under.......

Many people are willing to choose Simmons mattress when they buy a mattress. They feel comfortable sleeping, but after a few years, some people will feel more sleepy and tired. They often wake up and have.......

Here is the space for reading, writing, and even working from home. If the flower arrangement is placed on a desk, it is best to adopt the "four-face view" flower arrangement method so that when the owner or guest enters the study, they can enjoy the flower arrangement, and .......

(1) The installation of the security door should be in accordance with the type of security door used, and the appropriate installation method should be adopted.

(2) The door frame of the anti-the.......

National Heavy Rainfall Forecast Chart

The Central Meteorological Observatory issued a blue rainstorm warning at 6:00 on August 28th. It is expected that there will be heavy rainstorms in the Shandong Peninsula,.......

In order to ensure the safe and economical use of the tower crane and extend its service life, the maintenance and repair and lubrication of the tower crane must be done.

Tower maintenance

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