... gas torches (soldering torch,MAPP torch )are compact and portable,easy to operate,so it is ideal for the small job in ... heating food in the family, small objects welding, industrial welding (including the welding of copper, silver welding, soldering), injection mold from broken expected, ... to 20.Welcome to visit. The 17th Beijing Essen Welding and Cutting Fair June 4-7.2012 Exhibition Location:Beijing ...