Weldner韦尔德纳
weldv.焊接;使结合n.焊接;焊缝
welding material production焊材生产
welding and cutting combine割焊两用机
Welding procedure parameter焊接工艺参数
welded hollow sphere joints焊接空心球节点
welded plate heat exchanger全焊接板式换热器
welders and flame-cutters焊接工和火焰切割工
welding energy conservation焊接节能
welding to mend the defects缺陷焊补