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Optical brighteners, optical brightening agents (obas), fluorescent brightening agents (fbas), or fluorescent whitening agents (fwas), are chemical compounds that absorb light in the ultraviolet and violet region (usually 340-370 nm) of the electromagnetic spectrum, and re-emit light in the blue region (typically 420-470 nm) by fluorescence.these additives are often used to enhance …

Manufacturer for OB bleaching powder for pvc pipe goods supplier in China,we assistance our customers with most effective high-quality products and higher level service.Being the specialist manufacturer within this industry,we have gained rich expertise in generating and managing.Our Manufacturer for OB bleaching powder for pvc pipe items won certifications with the nearby and international main authorities .For much more detailed facts,please make contact with us!


We're an enterprise that export Manufacturer for OB bleaching powder for pvc pipe to China, we're approved by the relevant state registratio. Key Manufacturer for OB bleaching powder for pvc pipe and sell to many regions in China, product obtainable upon request. We've the spirit of "customer first, honesty first" principle, using a quantity of enterprises established long-term cooperative connection.

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