Welding rod
Synthetic element
Pure metal or alloy
Non metallic element
Ammonium chloride
Zinc chloride
Resin
Paste
Releasing of seam
Compress the seam
Closing and locking of seam
Stress relieving during seam operation
Rubber
Synthetic
Hardened steel
Mild steel
Pickling
Swaging
Seaming
Tinning