型焊接 meaning in Chinese

v shaped welding

Wrought gate valve dsf7 - 2j61 welding stop valve
Dsf7 - 2j61型焊接式截止阀
Methods of ultrasonic examination for t type welds of aluminium plates
铝板t型焊接的超声波检测方法
Dsf7 - 1j61 welding stop valve
Dsf7 - 1j61型焊接式截止阀
Metal construction . hollow section welded assemblies on type i and h sections . design and verification
金属结构件.圆形或矩形空心型材i或h型焊接件.设计和检验