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uniform tissue high collapsing strenght, high oil contain, good abrasion resistance, floating press and inhalation feed - details see: https://www.machineto.com/auto-engine-valve-guide-10232351

Valve guide made of powder metallurgy in our company has a 120mm long and the ratio of the length and diameter is 6:1. Because the product adopts suction method to charge material, floating press and five-zone continuous sintering furnace, it has uniform tissue, little density variety, high collapsing strength, high oil containing, better self-lubrication and good abrasion resistance. Our products can be widely used in 1------1000kw internal combustion engine.