... ) GB / QB: QCr0.5, QCr0.5Zr0.15, QZr0.2, Chromium copper Features: 1) Standards: a) GB / QB: QCr0.5, QCr0.5Zr0 ... .15, QZr0.2, QZr0.4 b) ASTM / CDA: C18200, C181 Chromium copperFeatures:1) Standards: a) GB / QB: ... .5, QCr0.5Zr0.15, QZr0.2, QZr0.4 b) ASTM / CDA: C18200, C18150, C18100, C15000 / C15100 c) JIS: CuCr1Zr d) ... metallurgical trade, and widely used for IC frame wire material COPPER