Ductile Iron Forging Pieces 球墨铸铁锻造件
In order to keep the property of forging pieces which they already have, calibrating in the way of cold correcting the shape with stress release and tempering could get a better result.
二次调质后，堆芯段筒体锻件产生了椭圆变形，为了不影响锻件已有性能，采用冷校形加去应力回火方法进行校正。
Primary uses for wrot brass are for ball valve stems and balls, and iron valve stems. a forging grade of brass is used in ball valve bodies and pieces.
黄铜的主要用途是球阀阀杆和球体，和铸铁阀门的阀杆。可锻黄铜可用于球阀阀体和断口部件。
Bill has been a blacksmith for years, he enjoys the robust excitement of forging metals and creating unique art pieces using his blacksmithing talent.
比尔当铁匠多年，能运用自己的打铁技术锻造金属件和创作独特工艺品，他喜欢工作时那种激动兴奋的感觉。
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