GB 8793-1988.Oil of cedarwood ( Cupressus funebris endlicher )- Guizhou, China.5...

国家标准2023.07.20

GB 12656-1990.Determination of electric strength at power trequence for capacito...

国家标准2023.07.20

GB 12742-1991.The specifications of testing equipment and measuring appliance fo...

国家标准2023.07.20

GB 13023-1991.Corrugating medium.4.2瓦楞原纸不经外力 作用不许有分层现象。4.3瓦楞原纸的纤维组 织应均匀,纸幅间厚薄- -...

国家标准2023.07.20

GB 1312一1991.Technical requlrements of lampholders for tubular fluorescent lamps...

国家标准2023.07.20

GB 1312 -2002/IEC 60400: 1999.Lampholders for tubular fluorescent lamps and star...

国家标准2023.07.20

GB 1312-2007/IEC 60400: 2004.Lampholders for tubular fluorescent lamps and start...

国家标准2023.07.20

GB 13505-1992.Pure insulating pulp.1主题内容 与适用范围GB 13505规定了高纯度绝缘木浆技术规范。GB 13505适用于...

国家标准2023.07.20

GB 13506-1992.Bleached sulfite pulp.5.4在抽样检验时,应先检查样本外部的包装情况,然后从中采取试样进行检验。5.5试样的采...

国家标准2023.07.20

GB 13507-1992.Unbleached sulfite pulp.5.4在抽样检验时,应先检查样本外部的包装情况,然后从中采取试样进行检验。5.5试样...

国家标准2023.07.20