Persang Alloy Industries Pvt. Ltd. [PAI] offers Pure Tin / Solder Anodes. Persang Alloy Industries Pvt. Ltd. Is an ISO 9001: 2000 certified company. The Pure Tin / Solder Anodes are manufactured from high purity refined tin ingots. The anode surface remains bright during the plating process and resolves evenly into the plating solution, resulting in low sludge production precipitation. In most cases the tin usage will decrease and reject rates decline resulting in considerable cost savings.