Composition: Argentum ,Cadmium,Copper ,Nickel ,Zinc etc Length :500mm Diameter: 0.5-5mm Package: box ,carton . MOQ: 1 KG Brazing :The silver solder we supplied with good quality and low priceWe make sure it's free from lead ,nickle and other substance which are harmful for human bodyLong service lifeGood to use ,various specifications are available for you .