对焊接头 meaning in English

butt joint
butt welded joint
butt-fusion joint
butt-welded joint

Marine steel butt - welding fittings
船用钢管对焊接头
Study on the pitting corrosion resistance of butt resistance welds of stainless steels
不锈钢电阻对焊接头的抗点蚀性能研究
Polyethelene pipes and fittings - determination of the tensile strength and failure mode of test pieces from a butt - fused joint
聚乙烯管道和配件.根据对焊接头对试样的抗拉强度和断裂模式的测定