bs 1139-2.1-1991 metal scaffolding. couplers. specification for steel couplers, loose spigots and base-plates for use in working scaffolds and falsework...

价格:25文库币

bs 7140-1995 木材加工机床发出的空气传播噪声.木材加工机床的操作条件...

价格:25文库币

bs 1139-3-1994 metal scaffolding - specification for prefabricated mobile access and working towers ...

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bs 3015-1991, iso 2041-1990 terms relating to mechanical vibration and shock...

价格:25文库币

bs 1664-8-1974 五种质量的机织棉带规范...

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bs 7354-1990 高压敞开式接线站设计实用规程...

价格:25文库币

bs iso 4309-2004 cranes — wire ropes — care, maintenance, installation, examination and discard...

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bs en 60684-2-1997 绝缘软套管规范.试验方法...

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bs iso iec 8822-1994 信息技术.开放式系统互联.演示式工作定义...

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bs 90-1975 specification for direct-acting electrical recording instruments and their accessories...

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bs 1377-2-1990 土木工程用土壤试验方法.第2部分分类试验...

价格:25文库币

bs 848-1-1997 fans for general purposes. performance testing using standardized airways...

价格:25文库币

bs iso iec 8650-1-1996 信息技术.开放系统互连.相关控制服务器元件定向连接协议.协议规范...

价格:25文库币

bs 903-2-1997 橡胶的物理试验.橡胶试验统计应用导则...

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bs 970-1-1991 specification for wrought steels for mechanical and allied engineering purposes. general inspection and testing procedures and ...

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bs iec 60988-2009 核电站.对安全性重要的仪器.探测松动零件的声音监测系統的性能,设計准则和操作程序...

价格:25文库币

bs 449-2-1969 specification for the use of structural steel in building. metric units...

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bs 1006-1990 c06 colour fastness to domestic and commerical laundering...

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bs 3447-1962 glossary of terms used in the glass industry...

价格:25文库币

bs en 61158-5-10-2008 工业通信网络.现场总线规范.应用层服务定义.10型元件...

价格:25文库币