YIWU GUANGWEI FIRM is a manufacturer and export of metal materials. Our products are as following: 1. brass,copper, aluminum, berlyllium copper bar, rod,foils, plate,sheet 2. clad metals: Copper aluminum bimetal, Cu-SUS, Cu-SUS-Cu, Al-SS, Al-SUS 3. Brazing, soldering, welding materials:  phos-copper brazing, silver brazing rod, aluminum brazing rod 4. Aluminum flux cord wire/rod/ring FCW-8812 for Al-Al brazing FCW-9802 for Al-Al, Al-Cu,Al-SS brazing  FCW-7822 for Al-Al, Al-Cu,Al-SS brazing  welcome your enquiry. Sophie