Purchase Qty. Reference FOB Price
200-499 kg US$12.80
500-999 kg US$12.70
1,000-1,999 kg US$12.60
2,000+ kg US$12.50
Product Description
Product Description Product Name: Chemical Optical Brightener Ob-1 C. I. No. 393 for Plastic Fluorescent Brightener Ob-1 Optical brightener OB-1 is one of the most commen and widely use whitening agent, It has a very good whitening effect for kinds of plastics. such as:ABS, PS, HIPS, PA, PC, ...