SMART SURFACE SCIENCE PRODUCTS RECOMMEND Crystal Serum Light ฿3,000.00 – ฿4,500.00 C2 Liquid Crystal ฿1,800.00 – ฿9,800.00 W9 Water Spot Remover ฿750.00 – ฿1,150.00 W6 Iron and General Fallout Remover ฿890.00