Home / Standards / GB/T 17604-1998 GB/T 17604-1998 Active Rubber--Recommendations for the workmanship of pipe joint rings--Description and classification of imperfections 橡胶 管道接口用密封圈制造质量的建议 疵点分类与类别 Standard Type GBT ICS 23.040.80 CCS G42 Status 现行 Issue Date 1998-12-08 Implementation 1999-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A