optical brigteners

Dear Sir or Madam:
Good day!
It is a great pleasure to hear that you are on the market for optical brighteners,basic dyes. 

We, HEBEI XINGYU CHEMICAL CO.,LTD. is a leading manufacturer of series of Basic dyes and Optical brighteners for more than twenty years.
Basic dyes:BASIC RED 1, BASIC RED 1:1,BASIC VIOLET 11,   BASIC VIOLET 11:1,
which are mainly used in pigment,lake,paint etc.
Optical brighteners such as
OPTICAL BRIGHTENER OB(FBA 184),OPTICAL BRIGHTENER OB-1(FBA 393),OPTICAL BRIGHTENER FP-127(FBA 378),OPTICAL BRIGHTENER KCB(FBA 367),OPTICAL BRIGHTENER CBS-X(FBA 351),OPTICAL BRIGHTENER KSN (FBA 368)
which are mainly used in thermoplastics,resin,fibers,paints,printing ink,detergent,washing liquid,soap etc.
We supply Basic red for BASF company for many years.

I do hope your kind interest to our products with good quality and pretty competitive price.
Any question, that will be appreciated ,please contact with me freely.
Free samples will be sent for your kind evalution.

I look forward to your kind comments by return, thank you.
Have a nice day! 541749442@