BS EN ISO 15614-2 2005 Specification and qualification of welding procedures for metallic materials. Welding procedure test - Arc welding of aluminium and its alloys.pdf文档页数:38文档大小:655.96KB文档格式:pdf BRITISH STANDARD BS EN ISO 15614-2:2005 Sp
QB/T 2805-2006 纸和纸板表面吸收速度的测定.pdf文档页数:4文档大小:488.57KB文档格式:pdf ICS85.060 Y30 GB 中华人民共和国国家标准 原/T461.2-2002 转景为GB个2505-20 驰行 纸和纸板表面吸收度的测定 Paper and board-Determination of the rate of surface absorbing 2