Hardy shrapnher is hard to clean
1, hardy shrapnoo fat, oil, lubricant pollution with a soft cloth or paper drying back with a neutral scrub or ammonia solution or special scrub medicine to wash; fingerprints, with alcohol or organic solvents (ether, benzene), dry with a soft cloth and wash with water; Bleach and acid attachment are immediately washed with water, soaked in a solution of ammonia or neutral carbonated soda, and then washed with neutral scrubs or warm water.
2, metal shrapnut welding by thermal color change, with 10% nitric acid or hydrofluoric acid solution washed back with ammonia soda light solution and treatment and then wash stainless steel reeds with water – specially washed medicine application; Organic carbide adheres to a neutral scrub or ammonia solution soaked in heat and then washed with a scrub with a weakly ground scrub.
3, labels and film, with warm water, weak scrub to scrub; Dust and easy to remove scale, with pans, weak lotion or with warm water washing; Adhesive ingredients, using alcohol or organic solutions; Rust caused by surface contaminants of hard metal shrapne, washing with nitric acid (10%) or abrasive scrubs – using special scrub medicine rainbow pattern too much, using scrubs or oils, washing with warm water scrubs