ASTM E2177-20 在湿恢复条件下用桶法测量路面标线反射亮度系数（RL）的标准试验方法.pdf PDF 2.45MB 6页 BS EN 1337-4 2004 Structural bearings - Roller bearings.pdf PDF 355.24KB 34页 BS EN IEC 60974-11 2021 Arc welding equipment - Electrode holders.pdf PDF 849.64KB 22页 EN 50173-6 2018 Information technology - Generic cabling systems - Part 6 Distributed building services.pdf PDF 3.96MB 56页 BS EN ISO 17892-11 2019 岩土调查和测试.土壤的实验室测试.渗透性测试 Geotechnical investigation and testing. Laboratory testing of soil. Permeability tests.pdf PDF 1000.08KB 30页 BS EN ISO 7091 2000 Plain washers. Normal series. Product grade C.pdf PDF 111.9KB 14页 ASTM F2854-20a 用于交联聚乙烯（PEX）管道的推入式交联聚乙烯（PEX）机械配件的标准规格.pdf PDF 2.94MB 5页 EN 12390-6 2009 Testing hardened concrete - Part 6 Tensile splitting strength of test specimens.pdf PDF 389.82KB 14页 BS EN 12504-4-2021 结构中的混凝土试验. 第4部分 超音波脉冲速率的测定.pdf PDF 8.36MB 18页 BS EN ISO 7094 2000 Plain washers. Extra large series. Product grade C.pdf PDF 187.36KB 14页 BS EN 1822-5-2000 High efficiency air filters （HEPA and ULPA）. Determining the efficiency of filter element.pdf PDF 391.52KB 24页 BS EN 1337-8 2007 Structural bearings - Guide bearings and restraint bearings.pdf PDF 1.29MB 30页 BS EN 1337-5 2005 Structural bearings - Pot bearings.pdf PDF 666.94KB 60页 BS EN ISO 9017 2018 Destructive tests on welds in metallic materials. Fracture test.pdf PDF 3.08MB 22页 BS EN 1011-2 2001 Welding. Recommendations for welding of metallic materials. Arc welding of ferritic steels.pdf PDF 1.09MB 62页 BS EN ISO 4629-3-2020 油漆和清漆的粘合剂 羟值的测定-快速测试.pdf PDF 4.25MB 11页 EN 50173-1 2018 Information technology - Generic cabling systems - Part 1 General requirements.pdf PDF 3.53MB 184页 BS EN 12390-2 2019 Testing hardened concrete. Making and curing specimens for strength tests.pdf PDF 994.27KB 12页 BS EN IEC 60974-1 2018/A1 2019 Arc welding equipment. Welding power sources.pdf PDF 2.26MB 160页 BS EN ISO 1452-2 2009 PlastICS pipingsystems for watersupply and for buriedand above-grounddrainage and sewerageunder pressure-Unplasticizedpoly（vinyl chloride）（PVC-U） Part 2 Pipes （ISO 1452-22009）.pdf PDF 571.65KB 32页 BS EN 10278 1999 Dimensions and tolerances of bright steel products.pdf PDF 129.14KB 10页 BS EN 1092-2 1997 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated - Cast iron flanges.pdf PDF 1.23MB 34页 BS EN 10311 2005 Joints for the connection of steel tubes and fittings for the conveyance of water and other aqueous liquids.pdf PDF 334.21KB 30页 BS EN ISO 1452-4 2009 PlastICS pipingsystems for watersupply and for buriedand above-grounddrainage and sewerageunder pressure-Unplasticizedpoly（vinyl chloride）（PVC-U） Part 4 Valves（ISO 1452-42009）.pdf PDF 479.08KB 20页 BS EN 681-1 1996 Elastomeric seals. Material requirements for pipe joint seals used in water and drainage applications. Vulcanized rubber.pdf PDF 782.47KB 24页 BS EN ISO 17892-9 2018 Geotechnical investigation and testing. Laboratory testing of soil. Consolidated triaxial compression tests on water saturated soils 岩土调查和测试.土壤的实验室测试.在水饱和土壤上进行固结三轴压缩试验.pdf PDF 1.14MB 34页 BS EN ISO 17892-12 2018/A1 2021 Geotechnical investigation and testing. Laboratory testing of soil. Determination of liquid and plastic limits 岩土调查和测试 土壤的实验室测试 液体和塑料极限的确定.pdf PDF 1.92MB 36页 BS EN 10224 2002 Non-alloy steel tubes and fittings for the conveyance of water and other aqueous liquids. Technical delivery conditions.pdf PDF 812.95KB 62页 BS EN 60974-11 2010 Arc welding equipment. Electrode holders.pdf PDF 1.32MB 18页 BS EN 13411-7-2021 钢丝绳的端接 安全 第7部分：对称楔形插座.pdf PDF 9.63MB 23页 英文版 EUROCODE 2 EUROCODE 2 – 混凝土结构设计.pdf PDF 2.56MB 145页 BS EN 751-1 1997 Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water. Anaerobic jointing compounds.pdf PDF 726.25KB 13页 BS EN IEC 60974-7 2019 Arc welding equipment. Torches.pdf PDF 1.33MB 38页 BS EN ISO 5178 2019 Destructive tests on welds in metallic materials. Longitudinal tensile test on weld metal in fusion welded joints.pdf PDF 526.74KB 12页 BS EN ISO 1452-5 2009 PlastICS pipingSystems for watersupply and for buriedand above-grounddrainage and sewerageunder pressure-Unplasticizedpoly（vinyl chloride）（PVC-U） Part 5 Fitness for purpose of thesystem ISO 1452.pdf PDF 543.04KB 22页 BS EN 1993-1-10 2005 Eurocode 3. Design of steel structures - Material toughness and through-thickness properties.pdf PDF 315.61KB 22页 BS EN 10025-1 2004 Hot rolled products of structural steels. General technical delivery conditions.pdf PDF 431.36KB 36页 NF EN 13286-40-2003 Unbound and hydraulically bound mixtures - Part 40 test method for the determination of the direct tensile strength of hydraulically bound mixtures.pdf PDF 3.61MB 10页 BS EN 12390-1-2021 硬化混凝土试验 样品和模型的形状、尺寸和其它要求.pdf PDF 6.13MB 15页 BS EN ISO 10873-2021 口腔医学-假牙粘合剂.pdf PDF 11.41MB 28页 BS EN 1997-2 2007 Eurocode 7. Geotechnical design. Ground investigation and testing.pdf PDF 2.37MB 202页 BS EN ISO 7093-1 2000 Plain washers. Large series - Product grade A.pdf PDF 181.54KB 16页 BS EN ISO 7093-2 2000 Plain washers. Large series - Product grade C.pdf PDF 110.94KB 14页 BS EN 17483-1-2021 私人保安服务 关键基础设施的保护 第1部分：一般要求.pdf PDF 10.06MB 26页 BS EN 1092-1-2007 法兰及其连接 按PN标注的管、阀门、配件及其附件用圆形法兰 第1部分：钢法兰Flanges and their joints - Circular flanges for pipes valves fittings and accessories PN designated - Part 1 Steel flanges.pdf PDF 3.57MB 126页 BS EN 1822-4-2000 High efficiency air filters （HEPA and ULPA）. Determining leakage of filter element （scan method）.pdf PDF 484.4KB 40页 BS EN IEC 60974-9 2018 Arc welding equipment. Installation and use.pdf PDF 1.16MB 36页 BS EN 10210-1 2006 Hot finished structural hollow sections of non-alloy and fine grain steels. Technical delivery requirements.pdf PDF 425.95KB 42页 ASTM E2177-20 在湿恢复条件下用桶法测量路面标线反射亮度系数（RL）的标准试验方法.pdf PDF 2.45MB 6页 BS EN 10090 1998 Valve steels and alloys for internal combustion engines.pdf PDF 1.36MB 17页 BS EN ISO 683-4 2018 Heat-treatable steels, alloy steels and free-cutting steels - Free-cutting steels.pdf PDF 855.2KB 30页
