Home / Standards / GB/T 11693-2022 GB/T 11693-2022 Active Welded bed plate for flanges of ship pipe 船用法兰焊接座板 Standard Type GBT ICS 47.020.30 CCS U55 Status 现行 Issue Date 2022-10-12 Implementation 2022-10-12 Responsible Dept 国家标准委 Drafting Unit N/A