Processing technology used: cutting, drilling
Material: Ductile iron, Cast Iron
Surface Treatment: Painting
Feature: Easy to install noise reduction
Manhole Cover for Cast Iron or maintenance hole cover is a removable plate forming the lid over the opening of a manhole, an opening large enough for a person to pass through that is used as an access point for an underground vault or tube.
We can do customized production according to customers' needs and drawings.
1. The spiral blade produced by the continuous cold rolling method overcomes the shortcomings of the traditional spiral blade production process, such as poor precision, difficult forming and high consumption of materials, and low production efficiency.
2. After the blade is formed, the surface is smooth and the dimensional accuracy and surface hardness are high.
3. Provide continuous integral blades according to the helical length required by customers, with good rigidity, convenient and fast welding and assembly during use.
Customized according to drawings
24h Technical supportCustomized according to samples
24h Technical support