GB/T 13319-2020.Geometrical product specifications (GPS)-Geometrical tolerancing-Pattern and combined geometrical specification. 1范围 GB/T 13319为使用位置度、

GB/T 4334-2020.Corrosion of metals and alloys-Test methods for intergranular corrosion of austenitic and ferritic austenitic ( duplex) stainless steel

GB/T 25067-2020.Information technology-Security techniques-Requirements for bodies providing audit and certification of information security managemen

GB/T 38733-2020.Office furniture-Office chairs 一Methods for the determination of dimensions. 1范围 GB/T 38733规定了办公椅尺寸的测量方法。 GB/T 38733不包括办公椅尺寸的规定或要求。 2规

GB/T 20308-2020.Geometrical product specifications (GPS)- Matrix model. 1范围 GB/T 20308是一个GPS基础标准,它解释了产品几何技术规范(GPS)的基本概念,并从总体上给出GPS标准的体系框架,包括一系列现行的和未来的

GB/T 38781-2020.Machinery for forestry- General safety requirements. 1范围 GB/T 38781规定了自行式林业机械和按作业要求装配成林业机械的安全要求。本标准包括林业机械在正常使用或误用时生产厂家可合理预见的一般的严重危害、危险

GB/T 38631-2020.Information technology-Security techniques-Sector specific application of GB/T 22080- Requirements. 1范围 GB/T 38631规定了GB/T 22080应用于具体行业

GB/T 24637.2-2020.Geometrical product specifications (GPS)-General concepts-Part 2: Basic tenets，specifications ，operators，uncertainties and ambiguiti

GB/T 24637.2-2020.Geometrical product specifications (GPS)-General concepts-Part 2: Basic tenets，specifications ，operators，uncertainties and ambiguiti

GB/T 24637.1-2020.Geometrical product specifications ( GPS)-General concepts-Part 1: Model for geometrical specification and verification. 1范围 GB/T 24