Home / Standards / GB/T 1951-2008 GB/T 1951-2008 Active Marine low pressure bronze male threaded stop valves 船用低压外螺纹青铜截止阀 Standard Type GBT ICS 47.020.30 CCS U52 Status 现行 Issue Date 2008-10-20 Implementation 2009-04-01 Responsible Dept 国家标准委 Drafting Unit N/A