Optical Brighteners For Plastic, Resin

O

WO, 6, 1,B<

g

荧光增白剂OB新

O

L
ST-2 (2)

O

荧光增白剂EBF新

O

BBU正

O

cof

O

荧光增白剂OB新

O

ST-3 (5)

O

Intermediate

B