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Standard Insuued on: 1989-09

GB 11639-1989    Methods of test for porous mass of dissolved acetylene cylinders
溶解乙炔气瓶多孔填料技术指标测定方法
Category No.:GB Valid Status:superseded
Issued Organization:SBTS Issued Date:1989-09-21
Implemented Date:1990-6-1 Abolished Date:
Superseded Standard.:GB 11638-2003 Dissolved acetylene cylinders
Superseded Date:2003-9-1
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