welds crack的相关资料：
临近单词
Weldner
weld
welding construction in winter
welded piping branch junctions
welding wire of aluminum alloy
welded hollow spherical joints
Welding sewn in pressure vessel
welding rod with acidic coating
welding I-shaped crane girder
Welding of Dimple Jacket Vessel
welding and assembling technics
weld between tubesheet and tube
