1. Light weight: the weight per unit length is cast iron pipe2. High strength: tensile strength can reach more than 45Mpa;3. Low resistance: the inner wall of the pipe is smooth and non-fouling. The h

In order to ensure that PVC pipes can avoid external loads and achieve the expected use environment and life, pipelines should be reasonably arranged and laid.In order to ensure the scientific and rat

Sewage pipes are the main equipment for the discharge of urban domestic sewage and industrial wastewater, and they are also an important part of environmental protection work.Its role is to transport

1. When designing and piping, the components, hydraulic components, pipe joints, and flanges that need to be connected should be considered comprehensively according to the hydraulic schematic diagram

(1) Good air tightness, reduce water loss, reduce production and marketing gap rate, and avoid the infiltration of external sewage during pipe network maintenance.(2) Good chemical stability, corrosio

First, the surface layer is usually checked for cracks and folds.The surface layer of the spiral steel pipe may have bumps, but there are certain restrictions on this kind of bumps.Secondly, the wall