DB63-T 943-2010 甘蓝型油菜主要病虫害防治技术规范 青海省
ISO 9514 2019 Paints and varnishes — Determination of the pot life of multicomponent coating systems — Preparation and conditioning of samples and guidelines for testing.pdf
ISO 6506-1 2014 Metallic materials — Brinell hardness test — Part 1 Test method.pdf
ISO 19642-3 2019 Road vehicles Automotive cables Part 3 Dimensions and requirements for 30 V a.c. or 60 V d.c. single core copper conductor cables.pdf
ISO 21987 2017 Ophthalmic optics — Mounted spectacle lenses.pdf
ISO-IEC 23988 2007 Information technology A code of practice for the use of information technology (IT) in the delivery of assessments.pdf
ISO-TS 14837-31 2017 Mechanical vibration Ground-borne noise and vibration arising from rail systems Part 31 Guideline on field measurements for the evaluation of human exposure in buildings.pdf
ISO 12131-3 2020 Plain bearings Hydrodynamic plain thrust pad bearings under steady-state conditions Part 3 Guide values for the calculation of thrust pad bearings.pdf
ISO 4749 1984 Copper alloys — Determination of lead content — Flame atomic absorption spectrometric method.pdf
ISO 10300-1 2023 Calculation of load capacity of bevel gears — Part 1 Introduction and.pdf
ISO 3171-1988Petroleum liquids. Automatic pipeline sampling second edition.pdf
GB-T 19448.6-2004 圆柱柄刀夹 第6部分 装圆柱柄刀具的E型刀夹.pdf
GB-T 11598-1999 提供数据传输业务的公用网之间的分组交换信令系统.pdf
GB-T 27852-2011 化学品 生物降解筛选试验 生化需氧量.pdf
GB-T 22650-2008 工业用氢氧化钠 钙镁总含量的测定 络合滴定法.pdf
GB-T 23894-2009 滑动轴承 铜合金镶嵌固体润滑轴承.pdf
GB-T 25610-2010 土方机械 自卸车车厢支承装置和司机室倾斜支承装置.pdf
GB-T 20022-2005 塑料 氯乙烯均聚和共聚树脂表观密度的测定.pdf
GB-T 24233-2009 锰矿石和铬矿石 评定品质波动和校核取样精密度的试验方法.pdf
GB-T 38607-2020 办公家具 桌台类 稳定性、强度和耐久性测试方法.pdf
GB-T 21224-2007 评定绝缘材料水树枝化的试验方法.pdf