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- BS 476 8 1972 Fire tests on building materials and structures第八部分
- BS 476 6 1989 Fire tests on building materials and structures. Method of test for fire propagation
- BS 476 21 1987 Fire tests on building materials and structures. Methods for determination of the fire resistance of loadbearing elements of construction
- wltools制图工具下载
- BS EN 10089 2002 Hot rolled steels for quenched and tempered springs Technical delivery conditions
- BS EN 14276 1 2006 Pressure equipment for refrigerating systems and heat pumps Part 1: Vessels; General requirements
- GB T 14282.1 1993 仪表着陆系统Ils下滑信标性能要求和测试方法
- GB T 14282.2 1993 仪表着陆系统Ils下滑信标接收机性能要求和测试方法
- GB T 14282.3 1993 仪表着陆系统Ils航向信标性能要求和测试方法
- GB T 14282.4 1993 仪表着陆系统Ils航向信标接收机性能要求和测试方法
- DIN EN 10253 4 2003 Butt welding pipe fittings Part 4: Wrought austenictic and austenitic ferritic duplex stainless steels with specific inspection requirements
- ASME B1.7M 01 Nomenclature Definitions and Letter Symbols for Screw Threads
- BS EN 287 1 2004 Qualification test of welders Fusion welding Part1 Steels
- BS EN ISO 10139 1 2005 Dentistry Soft lining materials for removable dentures Part 1 Materials for short term use
- BS EN ISO 10139 2 2001 Dentistry Soft lining materials for removable dentures Part 2 Materials for long term use
- SY T 6388 1999 TElsEIS STAR 地震数据采集系统检验项目及技术指标
- BS 476 8 1972 Fire tests on building materials and structures第八部分
- BS 476 6 1989 Fire tests on building materials and structures. Method of test for fire propagation
- BS 476 21 1987 Fire tests on building materials and structures. Methods for determination of the fire resistance of loadbearing elements of construction
- wltools制图工具下载
- BS EN 10089 2002 Hot rolled steels for quenched and tempered springs Technical delivery conditions
- BS EN 14276 1 2006 Pressure equipment for refrigerating systems and heat pumps Part 1: Vessels; General requirements
- GB T 14282.1 1993 仪表着陆系统Ils下滑信标性能要求和测试方法
- GB T 14282.2 1993 仪表着陆系统Ils下滑信标接收机性能要求和测试方法
- GB T 14282.3 1993 仪表着陆系统Ils航向信标性能要求和测试方法
- GB T 14282.4 1993 仪表着陆系统Ils航向信标接收机性能要求和测试方法
- DIN EN 10253 4 2003 Butt welding pipe fittings Part 4: Wrought austenictic and austenitic ferritic duplex stainless steels with specific inspection requirements
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- JIS G 4805 1999 High carbon chromium bearing steels
- JIS G 4804 1999 Free cutting carbon steels
- JIS G 3321 2005 Hot dip 55% aluminium zinc alloy coated steel sheets and coils
- BS EN 13121 2 2003 GRP tanks and vessels for use above ground. Composite materials. Chemical resistance
- Mss Sp 58 2002 Pipe Hangers And Supports Materials Design And Manufacture
- BS EN 13121 2 2003 GRP tanks and vessels for use above ground. Composite materials. Chemical resistance
- BS EN 13121 2 2003 GRP tanks and vessels for use above ground. Composite materials. Chemical resistance
- BS EN 13121 2 2003 GRP tanks and vessels for use above ground. Composite materials. Chemical resistance
- Mss Sp 58 2002 Pipe Hangers And Supports Materials Design And Manufacture
- Mss Sp 58 2002 Pipe Hangers And Supports Materials Design And Manufacture