Why consumers feedback that the truss they buy is not durable is related to the quality of the product is nothing more than these two factors, one is the raw material, the other is the production process, the welding process of the truss production plays a decisive role. Welding to grasp the temperature and the position of the weld. So when you buy trusses, where can you judge the quality of the welding process.
First, observe whether the welding point is uniform and smooth. If there are some metal lumps on the truss, it is probably because the welding in order to grasp the appropriate temperature, the temperature is too high so that one end of the liquefaction reaction, so there is deformation.
Secondly, pay attention to observe the welding joint position. The welds left by each welding are not only distributed at the joints, but also in other places, such as the middle of the bottom welding. In order to achieve uniform force, the truss is also prone to deformation.