It is necessary to pay attention to apply butyl rubber on the aluminum spacer strip of the equipment, and apply it evenly. It is necessary to apply it evenly on the whole surface to prevent leakage and burr. It should be noted that after the aluminum spacer is coated, it is forbidden to be stained with dust, so as to avoid damage to this equipment. This is also an aspect that needs attention. After determining the target object, we need to conduct on-the-spot investigation on insulating glass equipment manufacturers. During the investigation, we can see their business license, tax registration certificate and other franchise certificates. The next point is to take a look at the production line and equipment finished products in the production workshop, which can be said to be a difficult and important point in equipment procurement. Here, purchasers should carefully ask for price, function, configuration and other relevant information.