The installation of ductile iron pipes is also a science.

First, before construction begins, the routes and corresponding documentation for water supply and gas transmission pipelines must be designed. Ductile iron pipes should then be installed according to the construction drawings, with the key requirement being compliance with standards. Before and after the construction of water supply and gas transmission pipeline projects, the design unit should conduct a design briefing and conduct surveys and follow-ups based on the construction situation to understand the following conditions and information along the pipeline route.

1. When selecting a site, first survey the terrain and determine whether any existing electrical lines, pipelines, or other facilities will interfere with the project.

2. Prepare all necessary materials for the project and assess other site conditions.