... barLengh: 32cm/pieceFeature1.material:alloy composition with tin,silver and copper.2.packing:500g/roll/reel,17rolls/ctn,51rolls/big ... industry, welding and development) 9, environmentally friendly aluminum tin solder wire (aluminum enameled wire dedicated solder wire) Lead ... specialized in producing and selling tin products.Such as tin solder bars,tin solder wires,tin ingots,anode stubs,soldering flux ...