Home / Standards / GB/T 35490-2017 GB/T 35490-2017 Active Anti-corrosion technology of prestressed concrete cylinder pipe 预应力钢筒混凝土管防腐蚀技术 Standard Type GBT ICS 25.220.99 CCS A29 Status 现行 Issue Date 2017-12-29 Implementation 2018-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A