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To maintain the cleanliness of the metal parts.When the use of the surface leaving the water stains etc., it should be wiped dryand to keep surface clean and dry.

 

 

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If there are stains on the surface, use a damp cloth to scrub or a damp cloth dipped in neutral detergent fine or detergent treatment rather than a sharp, rigid items to scratch the surface. Finally wiping dry surface of the water.

 

 

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Should not use a sharp,rigid items to scratch the surface,avoid contact with hydrochloric acid, salt, and something's characteristics such as brine.