places for PCB customer's having good solution.

• - D/F copper corrosion process : Sodium Chlorate Oxidizer
• - Dry Film, PSR, Au plating preprocessing : Soft Etching
• - D/F stripping process : only for using stripping liquor(NaOH Type/KOH Type)
• - D/F developing process : only for using a developer(K2CO3 Type)
• - D/F developing and stripping,PSR developing process : antifoaming agent
• - Developing facilities cleaner : Only for using D/F, Only for using PSR
• - SR Ink,Rack Stripping : SR stripping liquids
• - Cu part organic film build(OXIDATION PREVENTION) : Surface treatment chemicals OSP(Pre Flux)

Urea anti freezing prevention

Not existing,we produce Urea 40% by using new making method : freezing prevention Urea 40%-Patent Releasing
(Register number:10-1146708) As it is the technics that can be prevented from the Urea 40% results happenings,
and it helps concentration maintenance in the cold winter by preventing to become results.