... soldering wireDiameter:0.1mm to4.0mmFeature 1.material:alloy composition with tin,silver and copper. 2.packing: 32cm/pc,25kg ... pure copper from Yunnan Tin Industry Co., Ltd., advanced processing with high purity .Purpose: welding wire in high temperature for ... bar are sold all around the world,we have dealed with American,Italian,Australian,Indian, African,South American,European,Asian customers.Our ...