Detailed Product Description Specifications:1) Standards: ASTM, EN, GB, JIS2) Materials: alloy Cu/Zn70/30, Cu/Zn80/20, C26000,C240003) O.D. & wall: Φ9 x 0.4 - Φ50 x 54) Applications: automobile radiators, oil cooler and water tanksPacking: as per buyer's instruction