Straight Guillotine Blade Include hot rolling and cold rolling straight blade. For hot rolling applications, Straight blade are usually made of high quality steels,However, for cold rolling applications, medium quality and high quality alloy tool steel and heavy-duty powder metallurgy steel are usually adopted for making straight blade for cold rolling applications.We developed some high alloy steel, They are new materials developed independently by our company and excellent in high intensity, high hardness , high wear resistance , high toughness and so on. They can be used in both cold and hot shearing ,the life is 2-3 times longer than other blades made of normal materials.