Welding is not possible due to site conditions, or partial assembly is carried out based on drawings in order to shorten the work process.
When the on-site measurement and design drawings are prepared
Proceed with partial assembly based on the pipe cutting and joint application drawings
o.
In the field, the object is completed by assembling it like Lego.
In the case of duplex construction, the work process can be shortened when constructing after partial assembly.