... , 5 Gallenl/canFive functions:* antirust: form a protective film on the surface, isolate the air and moisture.* loose rust: ... rusted parts, dissolve the rust.* Lubricating: form a protective film on the surface, lubricate the moving parts .* Clean and protect: ... , blot, carbon, impurities from the surface.* Dehumidifying: remove moisture on the metal surface, avoid equipment short-circuit and leakage. ...