YONGAN

Brazing fluxes; Chemicals for welding; Gases for welding; Metal welding flux; Oxygen for industrial purposes; Propylene (propene); Radiator flushing chemicals; Refrigerant gas for use in Refrigerants; Soldering chemicals; Soldering fluxes; Solidified protective gases for welding; Surfactants for use in the manufacture of synthetic detergents; Tempering chemicals for use in soldering