WELD TYPE BUTT 对接

WELD TYPE FILLET 角接

weld-on type tool joint 焊接式钻杆接头

Weld Geometry Type 焊缝几何类型

u type weld u型焊缝

Weld-on type 焊接式

weld joint type 焊接接头型式

t type weld t型焊缝

D-type weld D类焊缝

T-type fillet weld T型角焊缝