对称: symmetry; symmetrical断面: section; fracture surface; p ...型钢: fashioned iron; figured iron ...对称断面型材单孔模挤压: single hole symmetric extruding不对称断面: non symmetrical section; nonsymmetrical section; unbalanced section双对称断面: doubly symmetrical section简单断面型钢: simple shape周期断面型钢: periodic section不对称断面轧材: unbalanced section roll bar周期断面型钢轧机: reinforcing bar mill轨头非对称断面打磨: asymmetrical rail head profile grinding形断面型材: z-bar zee-bar z型钢断面: sectional shape半面型对称: hemihedral symmetry渐变断面型材: tapered section阶梯断面型材: steeped section周期断面型材: die rolled section周期断面型材轧机: die rolling mill周期断面型材轧制: die rolling周期断面型材料轧机: die rolling mill异型钢材 异形钢材 碾压断面: rolledsection不对称隧道断面: asymmetrical tunnel section全对称晶形的 全面型的: holohedral面型: forming凹凸面型钢制管法兰用石棉橡胶垫片: asbestos rubber gaskets for steel pipe flanges with male and female face
