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Circular Knife

JinFei

CN

20days

1. German & Japanese production line to ensure the tolerance 2. material: HSS, hard alloy steel, tungsten carbide steel,SKD11,M2,etc 3. fast delivery
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iron core slitting blade

FQA

What's the history of alloys? The first people in the world to make alloys were the babylonians, who began refining bronze (an alloy of copper and tin) 6,000 years ago. China is also one of the earliest countries in the world to study and produce alloys. The bronze (copper-tin alloy) technology was very developed in the shang dynasty (more than 3,000 years ago). Around the 6th century BC (late spring and autumn period) the sword.
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