GB/T 51394-2020.Standard for load on hydraulic structures.1总则1.0.1 为统一水工结构设计的作用取值标准,使设计符合安全可靠、经济合理、技术先进的要...
GB/T 29170-2012.Petroleum and natural gas industries-Drilling fluids-laboratory testing.1范围GB/T 29170规定了钻井液材料和钻井液的物理、化学、流变等性能的实...
GB/T 18852-2020.Non-destructive testing-Ultrasonic testing-Reference blocks and test procedures for the characterization of contact probe sound beams.1范围GB/T 18852规定了探头与...
GB/T 20323-2020.Milling cutters designation-Shank-type and bore-type milling cutters of solid or tipped design or with indexable cutting edges.1范围GB/T 20323规定了整体或镶齿...
GB/T 19473.1-2020.Polybutene ( PB) piping systems for hot and cold water installations-Part 1 : General.1范围GB/T 19473的本部分规定了冷热水用聚丁烯(PB)管道系统的术...
GB/T 1454-2021.Test method for edgewise compressive properties of sandwich constructions.1范围GB/T 1454规定了夹层结构侧压试验方法的试验原理、试验设备、试样...
GB/T 19473.2-2020.Polybutene (PB) piping systems for hot and cold water installations-Part 2:Pipes.1范围GB/T 19473的本部分规定了以聚丁烯混配料为原料,经挤出成型...
GB/T 19473.5-2020.Polybutene (PB) piping systems for hot and cold water installations-Part 5: Fitness for purpose of the system.1范围GB/T 19473的本部分规定了冷热水用聚丁...
GB/T 39273-2020.Rolling bearings and spherical plain bearings-Search structure for electronic media-Characteristics and performance criteria identified by property vocabulary.1范围...
GB/T 50538-2020.Technical standard for anti-corrosion and insulation coatings of buried steel pipeline.1总则1.0.1 为规范埋地钢质管道外防腐保温层的设计、施工及检...
