Sacrificial anode of Zn-Al-CD alloy and Al-Zn-In series alloy protect steel bodies in the sea water and in the earth from corrosion. Our products are mainly used in ships, marine engineering and port facilities, etc. Based on years of experience in the field, with the advanced casting technology and a set of physical and chemical inspection equipments, the pass rate of our products can reach 100%. And our products meet GB/T4950-2002 and GB/T4948-2002 standards.