castingquality相关论文
In order to produce sound inclusion free castings of good quality it has been extensively proven that filtration in the ......
GF气冲造型线对型砂性能有很高的要求。本文分析气冲造型过程中型砂水分、紧实率、湿压强度以及含泥量等因素对不同产品的影响,总......