... application areasThe product application areas: wood coloring, stamping materials, leather dyeing, plastic coating, printing ink, stationery, ink, metal, ... as bronzing material)Metal transparent coloring dye (such as upholstery cryogenic paint)4 metal complex dyes, specialty coatings5, ... vacuum and plating, etc.)7, natural and synthetic leather surface coloring8, shoe polish stain9, metal complex dyes ...