DB63-T 1979-2021 预制装配式涵洞工程施工技术规范 青海省
ISO 27850 2013 Tractors for agriculture and forestry — Falling object protective structures — Test procedures and performance requirements.pdf
ISO 1833-29 2020 Textiles — Quantitative chemical analysis — Part 29 Mixtures of polyamide with polypropylene polyamide bicomponent (method using sulfuric acid).pdf
ISO 3018-1974Rectangular textile floor coverings. Determination of dimensions first edition (as_nzs.pdf
ISO 299 1987 Machine tool tables — T-slots and corresponding bolts.pdf
ISO 20574 2019 Road vehicles — Durability test method for starter motor for stop and start.pdf
ISO 20607 2019 Safety of machinery — Instruction handbook — General drafting principles.pdf
ISO 2031 2015 Granulated cork — Determination of apparent bulk density.pdf
ISO 44003 2021 Collaborative business relationship management — Guidelines for micro, small and medium-sized enterprises on the implementation of the fundamental principles.pdf
ISO 22476-5 2023 Geotechnical investigation and testing — Field testing — Part 5 Prebored pressuremeter test.pdf
ISO 19012-4 2024 Microscopes Designation of microscope objectives Part 4 Polarization characteristics.pdf
GB-T 1871.2-1995 磷矿石和磷精矿中氧化铁含量的测定 容量法和分光光度法.pdf
GB-T 18039.4-2017 电磁兼容 环境 工厂低频传导骚扰的兼容水平.pdf
GB-T 21840-2008 硫化促进剂 TBBS.pdf
GB-T 21300-2007 塑料管材和管件 不透光性的测定.pdf
GB-T 22219-2008 船舶与海上技术 配有弹性密封件的金属管路附件耐火性能 试验台要求.pdf
GB-T 13829.1-2004 槽销 带导杆及全长平行沟槽.pdf
GB-T 27832-2011 化学品 遗传毒性 酿酒酵母菌有丝分裂重组试验方法.pdf
GB-T 38366-2019 林业机械 噪声测定规范.pdf
GB-T 19688-2022 信息与文献 数据交换和查询书目数据元目录.pdf
GB-T 825-1988 吊环螺钉.pdf