ชุบโครเมียม
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SRITONG ELECTRO CHEMICAL LTD., PART.
Aluminium and Chromium Plating, Plastic Injection and Vacuum Treatment Service -
SANG CHAREON PLATING SERVICE CO., LTD.
Chromiun, Nickel, Brass, Copper, Zinc (Electroless Galvanize), Hard Chrome, E.N. (Electroless Nickel), Hot-dip Galvanizing