Baoding in Hebei Mold Factory (Liangjing Tel: 15932263226 qq:? 414801412) manufactured shutters die sizes is relatively large, under normal circumstances is two meters long, 0.2 meters wide and 0.7 meters thick, in high-speed high-speed rail, road two side is also often used, such shutters with anti-wall steel mold, like shutters are mainly used to cover up embedded parts, sufficient to ensure the smooth conduct high-speed rail high-speed rail. This cover plate steel welded iron mold of the main choice is made with great convenience, the full protection of the shutters preform normal use. Such a cover plate steel mold is often used to better meet the high-speed high-speed rail use. Common high-speed shutter mold material structure and depending on the material, divided into two categories: one is a metal cover plate mold; one is a non-metallic shutters mold. Metal mold which is characterized by high costs, poor security, but because of its high capacity, good impact resistance to fatigue, and beautiful and durable, modern image of the city in line with the specific requirements, so usage is still the biggest. Non-metallic mold material is generally genus concrete, steel fiber reinforced concrete and composite materials.