Home / Standards / GB/T 588-2009 GB/T 588-2009 Active Marine bronze flanged stop check valves 船用法兰青铜截止止回阀 Standard Type GBT ICS 47.020.30 CCS U52 Status 现行 Issue Date 2009-03-23 Implementation 2009-11-01 Responsible Dept 国家标准委 Drafting Unit N/A