... and copper plating and relevantraw materials and equipment for plating:a) For nickel plating: ALS / SAS, BBI, ATP, BBI, BEO, BMP ... (benzylidene acetone), imidazole, OCBA (O-chlorobenzaldehyde)2) Fine specialty chemicals:a) Hypophosphorous acid (CAS no.: 6303-21-5)b) 2.4 ... propane sultone (CAS no.: 1120-71-4)3) Perfluoro chemicals:a) N-ethyl perfluorooctylsulfonamide (sulfluramid, CAS no.: 4151-50-2)b ...