?100% Chemical Composition? Cu Copper: 99.9% Phosphorus: 0.0007% Ni Nickel: 0.0002% Si Silicon: 0.0004% Fe Iron: 0.0008% Zn: 0.0009% Pb Lead: 0.0001% Sn: 0.0001% s Sulfur: 0.0009% Ag Silver: 0.0010 % Mechanical Properties: Tensile Strength: (Rm/Mpa)=295 Rockwell Hardness (Hrf)=65 Elongation (%) =3

Composition: Copper Cu Ag: 99.90; Oxygen 0 Surplus; Conductivity>56Ms/M; Tensile Strength Mpa>295; Density 8.9G/Lcml. Excellent Electrical and Thermal Conductivity of T2 Copper/Red Copper Tape. Smooth Surface Without Pores, Trachoma and Looseness. Material: Red Copper; Copper Type: Copper Foil, Low Oxygen Content, Just Because It is "Pure Copper". Size Description: for Example (0.04Mm*100Mm*1000Mm) Means: the Thickness is 0.04Mm, the Width is 100Mm, and the Length is 1000Mm.