1/8尺寸 420不锈钢材质不锈钢钢珠
420 Stainless Steel Bearing Balls
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Grade 25 AISI type 420 stainless steel bearing balls afford the advantage of maximum hardness (50 Rockwell C ) and resist corrosion from alcohol, ammonia, food environments, fresh water, many petroleum products and organic and some mild acid environments. 420 stainless steel is a high carbon martensitic stainless steel and is often used in dental and surgical instruments, cutlery, pump shafts, plastic molds and dies, steel balls, and various hand tools.
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