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GB/T 8151.23-2020
锌精矿化学分析方法 第23部分:汞含量的测定 固体进样直接法
Methods for chemical analysis of zinc concentrates—Part 23: Determination of mercury content—Solid sampling and direct mercury analysis method
GB/T 39086-2020
Functional safety requirements and testing methods for battery management system of electric vehicles
GB/T 37309-2019
Anti-corrosion technical specification for marine steel structures by high velocity arc spraying
GB/T 37345-2019
Technical specification for network management of digital terrestrial television transmission equipment
GB/T 37321-2019
Chemical analysis methods of different sulfur forms in gypsum and gypsum products
GB/T 17888.3-2020
Safety of machinery—Permanent means of access to machinery—Part 3: Stairs, stepladders and guard-rails
GB/T 39245.1-2020
Grooved metal gaskets with covering layers for pipe flanges—Part 1:PN designated