1) Good fluency 2) Low cost 3) Perfect performance 4) For resistance br... Model Number: Phos Copper Silver welding rod Silver Brazing Alloy RodSCup-2, SAgp-2, SAgp-5, SAgp-10, SAgp-30, SAgp-501.3mm x 3.2mm x 500mm, 2.0mm x 500mm, 2.5mm x 500mmPacking:1Lb Round clear Tube, 25 Lbs (11.34kgs) Carton, 1kgs Square Tube, 10kgs/carton. 1000kgs/pallet.