High Purity Single Crystal Copper Wire: a) High-purity, Cu>99.9999% ... elongation Thermal type Continuous directional solidification technology (referred to as the OCC, Ohno Continuous Casting), is ... single crystal copper has dense solidified organization, to avoid the shrinkage cavity, porosity and other ... The single crystal copper bar, do not need to undertake intermediate heat treatment, can from Φ 8 ...