try barkeeper's friend, http://www.amazon.com/Bar-Keepers-Friend%C2%AE-Cleanser-Polish/dp/B000V72992/ref=sr_1_1?ie=UTF8&qid=1323414828&sr=8-1, walmart, smart and final deal 比较好
try barkeeper's friend, http://www.amazon.com/Bar-Keepers-Friend%C2%AE-Cleanser-Polish/dp/B000V72992/ref=sr_1_1?ie=UTF8&qid=1323414828&sr=8-1, walmart, smart and final deal 比较好