Quanzhou Mingqiao Machine Accessory Co.,Ltd

The material of Valve Guide made of high Phosphor cast iron  alloy  is developed by Fabbrica Italiana Automobile Company and adopt formula of valve guide from NanJing New Daily Automobile Company. This formula is the advanced technology by ninety. The Valve Guide is of high attrition endurance,high temperature endurance and high erosion endurance. Furthernore, this material is of better resistance to wear .and still make the engine  work under worse conditional. Our products pass the destructive test for 300hrs which show our products? quality  gain the best effect. Under normal conditional, this product can use 150~300 thousand Kilometre which is higher than the valve guide made by .powder metallurgy .