cold bending of flat rolled steel products 扁平钢轧材的冷弯
cold bending of flat rolled steel products; factors for compensating value v for calculating the flat length 扁平钢轧材的冷弯.计算扁材长度的补偿值v的系数
we are an international trading company based in western india . we specialize in trading of flat rolled steel, long drawn steel, indian tea, octg etc 我们是国际贸易公司总部设在西印度.我们专门从事钢材贸易的单位,漫长钢、印度茶、油井等