Nonferrous metals and their alloys; copper and its alloys; lead and its alloys; tin and its alloys; solders; solder alloys; silver solder; gold solder; lead-free solder; solder in the form of ball; solder in the form of rod; solder in the form of bar; solder with grease; soldering wire of metal; solder in the form of paste; solder in the form of powder.