天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片
Changshan Hongyun Chemical Co., Ltd.??? ?? ??? ?????.
?? ?:
Changshan Hongyun Chemical Co., Ltd.
??:
0570-5669998
???:
sales@hongyunchem.com
??:
China
URL:
www.hongyunchem.com
? ?? ?:
20
1
?? ????
2-Amino-4-nitrophenol-6-sulfonic acid
????, 2-?????-5-????-
96-67-3
C6H6N2O6S
Fluorescent brightener 4BK-L
Liquid brightener
Fluorescent brightener JPS
Liquid brightener ABJ-L
Fluorescent brightener 135
?? 135 ??
12224-12-3
C18H14N2O2
Fluorescent brightener JPS-1-5
Liquid brightener ABR-L
Fluorescent brightener 85
12224-06-5
C36H34N12Na2O8S2
DYES INTERMEDIATES
Disodium 4,4'-bis(2-sulfostyryl)biphenyl
2,2'-((1,1'-???)-4,4'-???-2,1-????)??- ???? ? ???? ?
27344-41-8
C28H23NaO6S2
Liquid brightener JCE-L
Fluorescent brightener BA
Stilbene triazine derivative
Fluorescent Brightener 113
12768-92-2
C40H42N12O10S2.2Na
1,4-Bis(4-cyanostyryl)benzene
13001-40-6
C24H16N2
Liquid brightener ABF-L
Paper brightener
Acid whitening agent VBA
Fluorescent brightener CEF
1
Copyright 2019 ? ChemicalBook. All rights reserved