For the selection of aluminum ceiling material, some consumers who are not familiar with the special-shaped smallpox market conditions exist a misunderstanding: Thicker the better the plate, the stronger the better the hardness. Many manufacturers in order to meet the requirements of consumers, blindly in pursuit of the thickness and hardness, surface treatment spray a layer of paint, or use some iron, lead, zinc and other relatively heavy scrap aluminum plate to produce aluminum gusset plate, the substrate price is low, its hardness, thickness can meet.
The alloy composition of this product can not control the proportion, resulting in products easily oxidized, while a large number of recycling aluminum is harmful to human body, harmful metal elements seriously exceeded the standard, have a greater radiation and injury for human body, serious harm to human health.