1. Item: Copper bar, copper rod, Brass bar, brass rod 2. Material: T2, TP2, TP1, TU2, C1011, C1200, C12200, C10400, H90, H70, 1. Item: Copper bar, copper rod, Brass bar, brass rod 2. Material: T2, TP2, TP1, TU2, C1011, C1200, C12200, C10400, H90, H70, H68, H65, H63, H62, C2200, C2600, C2620, C2700, C2720, C2800, C68700, C51900, C77000, C75200, C11000, etc. 3. Standard: GB/T2059-2000. GB/T2067- ...