Circuit diagram of light bus odometer 
This Solder Wire is with activated resin flux,It enjoys excellent weld ability,which can be divided into RA and RMA.which is made from extremely high purity raw materials.
Sn63/Pb37,Sn60/Pb40,Sn50/Pb50,Sn45/Pb55,Sn40/Pb60,Sn30/Pb70
Flux-Cored Solder Wire,Solder Welding Wire,Lead Free Solder Wire,Silver Solder Wire
Shaoxing Tianlong Tin Materials Co.,Ltd. , https://www.tianlongspray.com