偷拍国产精品在线播放,白嫩大二白浆清晰可见,国产亚洲制服免视频,四川女人野外牲交A片 ,人妻激情偷乱视频一区二区三区,WWW内射高潮,欧美精品在欧美一区二区少妇,男女啪啪做爰高潮全过有多少姿势,亚洲 日本 中文字幕 制服,亚洲欧美自拍色综合图

Hongye Chemical Co., Ltd is the leading professional manufacturer and supplier of Thiourea Dioxide and pulp bleaching agent FAS. We can produce 50000MT Thiourea Dioxide(Formamidine sulfinic acid) &pulp bleaching agent FAS.

Pulp bleaching agent FAS is one kind excellent pulp and paper bleaching agent, it can be used in reduction bleaching,waster paper deink bleaching. It is very stable in air and can be used under the normal equipments. Because of high reducibility and good stability, it is very suitable for high temperature continual bleaching, and there is good for environment, does not increase the waste water pollution load, conforms to the environmental protection requirements.

Specification:

Appearance: Odorless crystal powder.

Purity: 99.0%Min

Moisture:0.05%Max

Iron(Fe):10ppm Max