Appearance and elimination of defect in welding wire production with wire - accumulated finish drawing machine 积线式精拉机生产焊丝时缺陷的产生及消除
Rays with high penetrating power are used to image defects in welds and metal castings 在工业方面,射线穿透力特强,可用作探测焊接点和金属铸件的裂缝。
Rays with high penetrating power are used to image defects in welds and metal castings 在工业方面,射线穿透力特强,可用作探测焊接点和金属铸件的裂缝。
Railway rolling stock . art and resistance welded joints of steels . part 1 : acceptance criteria for defects in welded butt and corner joints 铁路车辆.钢的电弧和电阻焊接接头.第1部分:对接焊点和角焊接点中缺陷的验收准则