Railway applications. Infrastructure. Aluminothermic welding of grooved rails
铁路应用 基础设施槽轨的铝热焊接

2016-11-30

Railway applications. Track. Aluminothermic welding of rails-Qualification of aluminothermic welders, approval of contractors and acceptance of welds
铁路应用 轨道钢轨铝热焊接

2021-07-19

Railway applications. Track. Aluminothermic welding of rails-Approval of welding processes
铁路应用 轨道钢轨铝热焊接 焊接工艺的批准

2017-03-31

Railway applications - Track - Aluminothermic welding of rails - Part 2: Qualification of aluminothermic welders, approval of contractors and acceptance of welds
铁路设施.轨道.钢轨的铝热焊接.第2部分:铝热焊工的资格鉴定 承包商的批准和焊缝的验收

2007-09-26

Railway applications - Track - Aluminothermic welding of rails - Part 1: Approval of welding processes
铁路设施.轨道.钢轨的铝热焊接.第1部分:焊接工艺的批准

2017-06-01

Railway applications - Track - Aluminothermic welding of rails - Part 1: Approval of welding processes
铁路设施.轨道.钢轨的铝热焊接.第1部分:焊接工艺的批准

2007-06-27