Pre-stressed spun concrete poles, also known as hollow spun concrete poles, are commonly used in various construction projects, such as electrical power transmission lines, street lighting, and...

The dry asbestos packing is made of asbestos wire and is used for sealing and heat insulation of various heat equipment and heat conduction systems. The heat loss at 550 °C is not more than 32%....

The concrete square pile mold can be used to make concrete square piles. In the process of making, standard and qualified products can be made according to certain use methods, and can be used...

At present, there is a kind of concrete antifreeze liquid on the market that is different from other waterproof coatings on the market. It is an alkali-activated chemical permeation solution. It uses...