The alteration rule of inequilateral Z-type steel thickness in butterfly pass is calculated and analyzed.
计算分析了不等边 Z 字钢在蝶式孔型中厚度变化的规律。
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A new inequilateral organic polyamine, 2-aminoethyl-bi(3-aminopropyl)amine, was synthesized by the additional and hydrogenation reaction of aminoacetonitrile with acrylonitrile.
The alteration rule of inequilateral Z-type steel thickness in butterfly pass is calculated and analyzed on its construction property, which can give some information for production.