有很多种,这个review比较好
rust remover, rust reformer
https://www.amazon.com/gp/product/B00M0TLQ66/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1
rust remover, rust reformer
https://www.amazon.com/gp/product/B00M0TLQ66/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1