metal plating; Quenching of metal being metal treatment; Tempering of metal; Heat treatment of metals; metal treating; surface treating of metal; fabrication of nonferrous metal for others; anti-rust and anti-oxidation processing being metal surface treatment of composition of metal or nonferrous metal; Metalworking; processing of rubber; processing of plastics; ceramic processing; water treating; recycling of waste and trash; rental of machines and apparatus for film development, photograph ...

metal plating; Quenching of metal being metal treatment; Tempering of metal; Heat treatment of metals; metal treating; surface treating of metal; fabrication of nonferrous metal for others; anti-rust and anti-oxidation processing being metal surface treatment of composition of metal or nonferrous metal; Metalworking; processing of rubber; processing of plastics; ceramic processing; water treating; recycling of waste and trash; rental of machines and apparatus for film development, photograph ...