年轻漂亮的老师6在线观看 年轻漂亮的老师6无删减 ,球员AARON MOODY大在线观看 球员AARON MOODY大无删减 琪琪看片网,大炕翁熄粗大在线观看 大炕翁熄粗大无删减 琪琪看片网

发布日期:2021年12月03日

年轻漂亮的老师6在线观看 年轻漂亮的老师6无删减 ,球员AARON MOODY大在线观看 球员AARON MOODY大无删减 琪琪看片网,大炕翁熄粗大在线观看 大炕翁熄粗大无删减 琪琪看片网Company event

Home>Company event>Content

What Is The Difference Between Forging And Casting?
Dec 15, 2020

The difference is in performance and molding. Forging when the metal after plastic deformation, there is the use of fine grain, often used in important parts of the woolen manufacturing, mainly at high temperature with the method of extrusion molding, or hammering and other methods, so that the metal material in the plastic state becomes a certain shape and size of the workpiece, change its physical properties. Casting belongs to the metal thermal processing process, the processing material requirements are better performance, it can manufacture complex shape parts, often used in the aesthetic performance requirements are not high, the hair of the weighing parts manufacturing, molding when the metal heating melted into the mold or mold, after cooling solidified into the object.

   2