... permeability 2.Soldering thin stainless steel plate, table-board, tube SZ-1200 Precise cold welding machine ( portable laser welder)/ crack ... thin stainless steel plate, table-board, tube together.Characters of SZ-1200 for welding1. Small heat affected zone while welding2. ... polar diameter1.0-2.0mmNet weight15KGDimension (L*W*H)400*220*290mm Application of SZ-1200Welding examples:1. big casting steel ...