Network planning technique is to use the network plans to arrange a way to plan, it is also known as the co-ordination method also known as PERT, mainly used for one-time large-scale projects, such as beneficiation plant construction, pilot projects and mineral processing equipment maintenance and other work planned aspect.

Roller Shutter Door Forming Machine is the equipment for making shutter door panel in various types like Australian type, European type and others. For those shutter door could be used in garage door, factory door and others. For some special functional type, they could anti-wind, anti-fire, anti-smoke and others.