First, hardware care is very important1. The connection parts of the door frame should be checked frequently, the bolts should be tightened in time, and the damaged parts should be replaced. Locate vulnerable pa…

After the typhoon season and in peacetime, we saw that the glass of the doors and Windows was dirty, and the first thing we thought of was that we should wipe the glass and keep it clean. In fact, the doors and …

The molding process of plastic profiles is divided into three stages:The first stage is the plasticization of raw materials, that is, through the heating and mixing of the extruder, the solid raw materials becom…

Plastic profile bending deformation is the most common quality fault in the extrusion process. Its severity is often different due to different plastic structure and die wear degree. If we do not take correspond…

Plastic steel profiles referred to as plastic steel, the main chemical composition is PVC, so it is also called PVC profiles. It is widely used as a new type of building material, because of its physical propert…