船用焊接通风法兰
Marine welding ventilation flange

2007-03-23

船用对焊钢法兰
The marine butt-welding steel flanges

2013-07-22

船用焊接异径铜法兰
Marine welded brass pipe reducing flanges

2005-04-11

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

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

Ships and marine technology - Extra light duty welding flanges
船舶和海上技术.超轻型焊接法兰

2013-06-01

船用对焊钢环松套钢法兰
Marine welding neck steel outer race composite flanges

2008-03-17