Kichkina oksalat kislotasini oling va uni zang dog'iga qo'ying, bir necha tomchi iliq suv qo'shing, ozgina ishqalang va keyin uni suv bilan yuving.
Agar yangi limon bo'lsa, uning sharbatini siqib oling va zang dog'iga surting, zang dog'i ketguncha bir necha marta takrorlang, so'ngra sovunli suv bilan yuving.
Zangni 10 foizli sirka kislota eritmasi bilan artib oling yoki bo'yalgan qismini sirka kislotasi eritmasiga soling va ertasi kuni suv bilan yuving.
Zang dog'ini 10 foizli limon eritmasi yoki 10 foiz oksalat kislotasi eritmasi bilan namlang, so'ngra uni konsentrlangan sho'r suvga soling, ertasi kuni yuving va yuving.
Soak it in the rice-washing water that has been standing for a few days for a few hours and then wash it! After removing the rust, be sure to apply a thin layer of oil or Vaseline to the surface. This will preserve the results after rust removal. For more common sense about buttons, you can pay attention to our official website Shenzhen Litongda Garment Accessories
