CB/T 3212-1999
船用搭焊、对焊、铜管折边松套、异径钢法兰
Lap Welding. Balanced welding. Copper pipe flanging free Flared steel flange for marine
1999-04-30
CB 1045-2018
P3.0MPa异径搭焊钢法兰规范
CB/T 46-2007
船用搭焊钢法兰
Marine slip-on steel flange
2007-03-23
CB/T 49-2007
船用搭焊钢环松套钢法兰
Marine combination pipe flanges of slip-on steel outer flanges of fillet weld-on steel inner flanges
2007-03-23