Home / Standards / GB 11638-2003 GB 11638-2003 Abolished Dissolved acetylene cylinders 溶解乙炔气瓶 Standard Type GB ICS 23.020.30 CCS J74 Status 废止 Issue Date 2003-03-06 Implementation 2003-09-01 Responsible Dept 国家标准委 Drafting Unit N/A