Home / Standards / GB/T 21944.2-2009 GB/T 21944.2-2009 Abolished Special products of silicon carbide - Kiln furniture of reaction bonded silicon carbide - Part 2：Special beam 碳化硅特种制品 反应烧结碳化硅窑具 第2部分：异型梁 Standard Type GBT ICS 25.100.70 CCS J43 Status 废止 Issue Date 2009-04-23 Implementation 2009-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A